Finding the Fourth Proportional to 249,061.86, 373,565.10 and 89,131.34

Step by Step Solution

1. Step 1: Write the proportion equation
   249,061.86 : 373,565.10 = 89,131.34 : x
2. Step 2: Convert to fraction form
   249,061.86/373,565.10 = 89,131.34/x
3. Step 3: Cross multiply
   249,061.86x = 373,565.10 × 89,131.34
4. Step 4: Simplify right side
   249,061.86x = 33,296,357,940.23
5. Step 5: Solve for x
   x = 33,296,357,940.23/249,061.86
6. Step 6: Final answer
   x = 133,687.10