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Finding the Fourth Proportional to 112,617.60, 168,829.20 and 57,213.60

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Solution

The fourth proportional to 112,617.60, 168,829.20 and 57,213.60 is: 85,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,617.60 : 168,829.20 = 57,213.60 : x
  2. Step 2: Convert to fraction form
    112,617.60/168,829.20 = 57,213.60/x
  3. Step 3: Cross multiply
    112,617.60x = 168,829.20 × 57,213.60
  4. Step 4: Simplify right side
    112,617.60x = 9,659,326,317.12
  5. Step 5: Solve for x
    x = 9,659,326,317.12/112,617.60
  6. Step 6: Final answer
    x = 85,771.02

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