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Finding the Fourth Proportional to 423,211, 634,853.76 and 156,974.44

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Solution

The fourth proportional to 423,211, 634,853.76 and 156,974.44 is: 235,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,211 : 634,853.76 = 156,974.44 : x
  2. Step 2: Convert to fraction form
    423,211/634,853.76 = 156,974.44/x
  3. Step 3: Cross multiply
    423,211x = 634,853.76 × 156,974.44
  4. Step 4: Simplify right side
    423,211x = 99,655,813,457.89
  5. Step 5: Solve for x
    x = 99,655,813,457.89/423,211
  6. Step 6: Final answer
    x = 235,475.48

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