Finding the Fourth Proportional to 325,932.21, 488,898.72 and 89,276.94

Step by Step Solution

1. Step 1: Write the proportion equation
   325,932.21 : 488,898.72 = 89,276.94 : x
2. Step 2: Convert to fraction form
   325,932.21/488,898.72 = 89,276.94/x
3. Step 3: Cross multiply
   325,932.21x = 488,898.72 × 89,276.94
4. Step 4: Simplify right side
   325,932.21x = 43,647,381,691.52
5. Step 5: Solve for x
   x = 43,647,381,691.52/325,932.21
6. Step 6: Final answer
   x = 133,915.52