Finding the Fourth Proportional to 109,641.38, 151,308.77 and 67,191.71

Step by Step Solution

1. Step 1: Write the proportion equation
   109,641.38 : 151,308.77 = 67,191.71 : x
2. Step 2: Convert to fraction form
   109,641.38/151,308.77 = 67,191.71/x
3. Step 3: Cross multiply
   109,641.38x = 151,308.77 × 67,191.71
4. Step 4: Simplify right side
   109,641.38x = 10,166,693,901.79
5. Step 5: Solve for x
   x = 10,166,693,901.79/109,641.38
6. Step 6: Final answer
   x = 92,726.80