Finding the Fourth Proportional to 151,591.34, 209,195.96 and 83,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   151,591.34 : 209,195.96 = 83,612.72 : x
2. Step 2: Convert to fraction form
   151,591.34/209,195.96 = 83,612.72/x
3. Step 3: Cross multiply
   151,591.34x = 209,195.96 × 83,612.72
4. Step 4: Simplify right side
   151,591.34x = 17,491,443,228.61
5. Step 5: Solve for x
   x = 17,491,443,228.61/151,591.34
6. Step 6: Final answer
   x = 115,385.50