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Finding the Fourth Proportional to 11,659.92, 17,488.20 and 3,867.72

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Solution

The fourth proportional to 11,659.92, 17,488.20 and 3,867.72 is: 5,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.92 : 17,488.20 = 3,867.72 : x
  2. Step 2: Convert to fraction form
    11,659.92/17,488.20 = 3,867.72/x
  3. Step 3: Cross multiply
    11,659.92x = 17,488.20 × 3,867.72
  4. Step 4: Simplify right side
    11,659.92x = 67,639,460.90
  5. Step 5: Solve for x
    x = 67,639,460.90/11,659.92
  6. Step 6: Final answer
    x = 5,801.02

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