Finding the Fourth Proportional to 156,672.92, 216,185.82 and 89,591.96

Step by Step Solution

1. Step 1: Write the proportion equation
   156,672.92 : 216,185.82 = 89,591.96 : x
2. Step 2: Convert to fraction form
   156,672.92/216,185.82 = 89,591.96/x
3. Step 3: Cross multiply
   156,672.92x = 216,185.82 × 89,591.96
4. Step 4: Simplify right side
   156,672.92x = 19,368,511,338.01
5. Step 5: Solve for x
   x = 19,368,511,338.01/156,672.92
6. Step 6: Final answer
   x = 123,623.86