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Finding the Fourth Proportional to 116,689.92, 174,783.72 and 66,743.76

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Solution

The fourth proportional to 116,689.92, 174,783.72 and 66,743.76 is: 99,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,689.92 : 174,783.72 = 66,743.76 : x
  2. Step 2: Convert to fraction form
    116,689.92/174,783.72 = 66,743.76/x
  3. Step 3: Cross multiply
    116,689.92x = 174,783.72 × 66,743.76
  4. Step 4: Simplify right side
    116,689.92x = 11,665,722,659.59
  5. Step 5: Solve for x
    x = 11,665,722,659.59/116,689.92
  6. Step 6: Final answer
    x = 99,971.98

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