Finding the Fourth Proportional to 88,658.68, 132,978.16 and 31,730.29

Step by Step Solution

1. Step 1: Write the proportion equation
   88,658.68 : 132,978.16 = 31,730.29 : x
2. Step 2: Convert to fraction form
   88,658.68/132,978.16 = 31,730.29/x
3. Step 3: Cross multiply
   88,658.68x = 132,978.16 × 31,730.29
4. Step 4: Simplify right side
   88,658.68x = 4,219,435,501.14
5. Step 5: Solve for x
   x = 4,219,435,501.14/88,658.68
6. Step 6: Final answer
   x = 47,591.91