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Finding the Fourth Proportional to 70,383.18, 105,578.40 and 17,793.12

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Solution

The fourth proportional to 70,383.18, 105,578.40 and 17,793.12 is: 26,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,383.18 : 105,578.40 = 17,793.12 : x
  2. Step 2: Convert to fraction form
    70,383.18/105,578.40 = 17,793.12/x
  3. Step 3: Cross multiply
    70,383.18x = 105,578.40 × 17,793.12
  4. Step 4: Simplify right side
    70,383.18x = 1,878,569,140.61
  5. Step 5: Solve for x
    x = 1,878,569,140.61/70,383.18
  6. Step 6: Final answer
    x = 26,690.60

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