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Finding the Fourth Proportional to 61,318.80, 91,978.20 and 58,694.40

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Solution

The fourth proportional to 61,318.80, 91,978.20 and 58,694.40 is: 88,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,318.80 : 91,978.20 = 58,694.40 : x
  2. Step 2: Convert to fraction form
    61,318.80/91,978.20 = 58,694.40/x
  3. Step 3: Cross multiply
    61,318.80x = 91,978.20 × 58,694.40
  4. Step 4: Simplify right side
    61,318.80x = 5,398,605,262.08
  5. Step 5: Solve for x
    x = 5,398,605,262.08/61,318.80
  6. Step 6: Final answer
    x = 88,041.60

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