Finding the Fourth Proportional to 298,856.32, 448,350.08 and 88,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   298,856.32 : 448,350.08 = 88,510.72 : x
2. Step 2: Convert to fraction form
   298,856.32/448,350.08 = 88,510.72/x
3. Step 3: Cross multiply
   298,856.32x = 448,350.08 × 88,510.72
4. Step 4: Simplify right side
   298,856.32x = 39,683,788,392.86
5. Step 5: Solve for x
   x = 39,683,788,392.86/298,856.32
6. Step 6: Final answer
   x = 132,785.51