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Finding the Fourth Proportional to 326,348.92, 489,528.78 and 89,690.14

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Solution

The fourth proportional to 326,348.92, 489,528.78 and 89,690.14 is: 134,536.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,348.92 : 489,528.78 = 89,690.14 : x
  2. Step 2: Convert to fraction form
    326,348.92/489,528.78 = 89,690.14/x
  3. Step 3: Cross multiply
    326,348.92x = 489,528.78 × 89,690.14
  4. Step 4: Simplify right side
    326,348.92x = 43,905,904,812.23
  5. Step 5: Solve for x
    x = 43,905,904,812.23/326,348.92
  6. Step 6: Final answer
    x = 134,536.69

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