Finding the Fourth Proportional to 172,566.96, 258,500.52 and 89,286

Step by Step Solution

1. Step 1: Write the proportion equation
   172,566.96 : 258,500.52 = 89,286 : x
2. Step 2: Convert to fraction form
   172,566.96/258,500.52 = 89,286/x
3. Step 3: Cross multiply
   172,566.96x = 258,500.52 × 89,286
4. Step 4: Simplify right side
   172,566.96x = 23,080,477,428.72
5. Step 5: Solve for x
   x = 23,080,477,428.72/172,566.96
6. Step 6: Final answer
   x = 133,747.95