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Finding the Fourth Proportional to 13,640.96, 20,461.44 and 5,844.72

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Solution

The fourth proportional to 13,640.96, 20,461.44 and 5,844.72 is: 8,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.96 : 20,461.44 = 5,844.72 : x
  2. Step 2: Convert to fraction form
    13,640.96/20,461.44 = 5,844.72/x
  3. Step 3: Cross multiply
    13,640.96x = 20,461.44 × 5,844.72
  4. Step 4: Simplify right side
    13,640.96x = 119,591,387.60
  5. Step 5: Solve for x
    x = 119,591,387.60/13,640.96
  6. Step 6: Final answer
    x = 8,767.08

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