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Finding the Fourth Proportional to 263,493.59, 395,303.36 and 86,000.92

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Solution

The fourth proportional to 263,493.59, 395,303.36 and 86,000.92 is: 129,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,493.59 : 395,303.36 = 86,000.92 : x
  2. Step 2: Convert to fraction form
    263,493.59/395,303.36 = 86,000.92/x
  3. Step 3: Cross multiply
    263,493.59x = 395,303.36 × 86,000.92
  4. Step 4: Simplify right side
    263,493.59x = 33,996,451,220.83
  5. Step 5: Solve for x
    x = 33,996,451,220.83/263,493.59
  6. Step 6: Final answer
    x = 129,021.93

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