Finding the Fourth Proportional to 88,719.92, 133,100.86 and 28,748.30

Step by Step Solution

1. Step 1: Write the proportion equation
   88,719.92 : 133,100.86 = 28,748.30 : x
2. Step 2: Convert to fraction form
   88,719.92/133,100.86 = 28,748.30/x
3. Step 3: Cross multiply
   88,719.92x = 133,100.86 × 28,748.30
4. Step 4: Simplify right side
   88,719.92x = 3,826,423,453.54
5. Step 5: Solve for x
   x = 3,826,423,453.54/88,719.92
6. Step 6: Final answer
   x = 43,129.25