Finding the Fourth Proportional to 88,488.20, 132,815.68 and 58,926.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,488.20 : 132,815.68 = 58,926.72 : x
2. Step 2: Convert to fraction form
   88,488.20/132,815.68 = 58,926.72/x
3. Step 3: Cross multiply
   88,488.20x = 132,815.68 × 58,926.72
4. Step 4: Simplify right side
   88,488.20x = 7,826,392,386.97
5. Step 5: Solve for x
   x = 7,826,392,386.97/88,488.20
6. Step 6: Final answer
   x = 88,445.61