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Finding the Fourth Proportional to 36,126.54, 54,189.64 and 9,831.21

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Solution

The fourth proportional to 36,126.54, 54,189.64 and 9,831.21 is: 14,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,126.54 : 54,189.64 = 9,831.21 : x
  2. Step 2: Convert to fraction form
    36,126.54/54,189.64 = 9,831.21/x
  3. Step 3: Cross multiply
    36,126.54x = 54,189.64 × 9,831.21
  4. Step 4: Simplify right side
    36,126.54x = 532,749,539.74
  5. Step 5: Solve for x
    x = 532,749,539.74/36,126.54
  6. Step 6: Final answer
    x = 14,746.76

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