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Finding the Fourth Proportional to 52,439.42, 78,589.06 and 19,128.17

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Solution

The fourth proportional to 52,439.42, 78,589.06 and 19,128.17 is: 28,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,439.42 : 78,589.06 = 19,128.17 : x
  2. Step 2: Convert to fraction form
    52,439.42/78,589.06 = 19,128.17/x
  3. Step 3: Cross multiply
    52,439.42x = 78,589.06 × 19,128.17
  4. Step 4: Simplify right side
    52,439.42x = 1,503,264,703.35
  5. Step 5: Solve for x
    x = 1,503,264,703.35/52,439.42
  6. Step 6: Final answer
    x = 28,666.69

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