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Finding the Fourth Proportional to 59,978.60, 89,968.02 and 15,605.28

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Solution

The fourth proportional to 59,978.60, 89,968.02 and 15,605.28 is: 23,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,978.60 : 89,968.02 = 15,605.28 : x
  2. Step 2: Convert to fraction form
    59,978.60/89,968.02 = 15,605.28/x
  3. Step 3: Cross multiply
    59,978.60x = 89,968.02 × 15,605.28
  4. Step 4: Simplify right side
    59,978.60x = 1,403,976,065.12
  5. Step 5: Solve for x
    x = 1,403,976,065.12/59,978.60
  6. Step 6: Final answer
    x = 23,407.95

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