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Finding the Fourth Proportional to 36,872.91, 55,309.26 and 9,170.91

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Solution

The fourth proportional to 36,872.91, 55,309.26 and 9,170.91 is: 13,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,872.91 : 55,309.26 = 9,170.91 : x
  2. Step 2: Convert to fraction form
    36,872.91/55,309.26 = 9,170.91/x
  3. Step 3: Cross multiply
    36,872.91x = 55,309.26 × 9,170.91
  4. Step 4: Simplify right side
    36,872.91x = 507,236,245.63
  5. Step 5: Solve for x
    x = 507,236,245.63/36,872.91
  6. Step 6: Final answer
    x = 13,756.34

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