Finding the Fourth Proportional to 172,597.96, 258,547.02 and 89,317

Step by Step Solution

1. Step 1: Write the proportion equation
   172,597.96 : 258,547.02 = 89,317 : x
2. Step 2: Convert to fraction form
   172,597.96/258,547.02 = 89,317/x
3. Step 3: Cross multiply
   172,597.96x = 258,547.02 × 89,317
4. Step 4: Simplify right side
   172,597.96x = 23,092,644,185.34
5. Step 5: Solve for x
   x = 23,092,644,185.34/172,597.96
6. Step 6: Final answer
   x = 133,794.42