Finding the Fourth Proportional to 325,775.52, 488,597.67 and 89,142.12

Step by Step Solution

1. Step 1: Write the proportion equation
   325,775.52 : 488,597.67 = 89,142.12 : x
2. Step 2: Convert to fraction form
   325,775.52/488,597.67 = 89,142.12/x
3. Step 3: Cross multiply
   325,775.52x = 488,597.67 × 89,142.12
4. Step 4: Simplify right side
   325,775.52x = 43,554,632,130.86
5. Step 5: Solve for x
   x = 43,554,632,130.86/325,775.52
6. Step 6: Final answer
   x = 133,695.23