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Finding the Fourth Proportional to 7,677,978.60, 11,520,942.30 and 3,132,359.40

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Solution

The fourth proportional to 7,677,978.60, 11,520,942.30 and 3,132,359.40 is: 4,700,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677,978.60 : 11,520,942.30 = 3,132,359.40 : x
  2. Step 2: Convert to fraction form
    7,677,978.60/11,520,942.30 = 3,132,359.40/x
  3. Step 3: Cross multiply
    7,677,978.60x = 11,520,942.30 × 3,132,359.40
  4. Step 4: Simplify right side
    7,677,978.60x = 36,087,731,910,262.62
  5. Step 5: Solve for x
    x = 36,087,731,910,262.62/7,677,978.60
  6. Step 6: Final answer
    x = 4,700,160.52

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