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Finding the Fourth Proportional to 26,749.31, 40,145.83 and 13,605.44

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Solution

The fourth proportional to 26,749.31, 40,145.83 and 13,605.44 is: 20,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,749.31 : 40,145.83 = 13,605.44 : x
  2. Step 2: Convert to fraction form
    26,749.31/40,145.83 = 13,605.44/x
  3. Step 3: Cross multiply
    26,749.31x = 40,145.83 × 13,605.44
  4. Step 4: Simplify right side
    26,749.31x = 546,201,446.57
  5. Step 5: Solve for x
    x = 546,201,446.57/26,749.31
  6. Step 6: Final answer
    x = 20,419.28

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