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Finding the Fourth Proportional to 66,655.73, 91,986.01 and 39,800.59

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Solution

The fourth proportional to 66,655.73, 91,986.01 and 39,800.59 is: 54,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.73 : 91,986.01 = 39,800.59 : x
  2. Step 2: Convert to fraction form
    66,655.73/91,986.01 = 39,800.59/x
  3. Step 3: Cross multiply
    66,655.73x = 91,986.01 × 39,800.59
  4. Step 4: Simplify right side
    66,655.73x = 3,661,097,469.75
  5. Step 5: Solve for x
    x = 3,661,097,469.75/66,655.73
  6. Step 6: Final answer
    x = 54,925.47

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