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Finding the Fourth Proportional to 115,809.60, 173,584.80 and 65,913.60

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Solution

The fourth proportional to 115,809.60, 173,584.80 and 65,913.60 is: 98,796.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,809.60 : 173,584.80 = 65,913.60 : x
  2. Step 2: Convert to fraction form
    115,809.60/173,584.80 = 65,913.60/x
  3. Step 3: Cross multiply
    115,809.60x = 173,584.80 × 65,913.60
  4. Step 4: Simplify right side
    115,809.60x = 11,441,599,073.28
  5. Step 5: Solve for x
    x = 11,441,599,073.28/115,809.60
  6. Step 6: Final answer
    x = 98,796.64

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