Finding the Fourth Proportional to 88,658.81, 132,978.34 and 31,730.42

Step by Step Solution

1. Step 1: Write the proportion equation
   88,658.81 : 132,978.34 = 31,730.42 : x
2. Step 2: Convert to fraction form
   88,658.81/132,978.34 = 31,730.42/x
3. Step 3: Cross multiply
   88,658.81x = 132,978.34 × 31,730.42
4. Step 4: Simplify right side
   88,658.81x = 4,219,458,579.10
5. Step 5: Solve for x
   x = 4,219,458,579.10/88,658.81
6. Step 6: Final answer
   x = 47,592.10