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Finding the Fourth Proportional to 36,918.96, 55,378.56 and 9,216.96

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Solution

The fourth proportional to 36,918.96, 55,378.56 and 9,216.96 is: 13,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.96 : 55,378.56 = 9,216.96 : x
  2. Step 2: Convert to fraction form
    36,918.96/55,378.56 = 9,216.96/x
  3. Step 3: Cross multiply
    36,918.96x = 55,378.56 × 9,216.96
  4. Step 4: Simplify right side
    36,918.96x = 510,421,972.38
  5. Step 5: Solve for x
    x = 510,421,972.38/36,918.96
  6. Step 6: Final answer
    x = 13,825.47

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