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Finding the Fourth Proportional to 52,348.48, 78,521.63 and 12,905.93

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Solution

The fourth proportional to 52,348.48, 78,521.63 and 12,905.93 is: 19,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,348.48 : 78,521.63 = 12,905.93 : x
  2. Step 2: Convert to fraction form
    52,348.48/78,521.63 = 12,905.93/x
  3. Step 3: Cross multiply
    52,348.48x = 78,521.63 × 12,905.93
  4. Step 4: Simplify right side
    52,348.48x = 1,013,394,792.04
  5. Step 5: Solve for x
    x = 1,013,394,792.04/52,348.48
  6. Step 6: Final answer
    x = 19,358.63

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