Finding the Fourth Proportional to 90,105.76, 135,155.88 and 37,513.92

Step by Step Solution

1. Step 1: Write the proportion equation
   90,105.76 : 135,155.88 = 37,513.92 : x
2. Step 2: Convert to fraction form
   90,105.76/135,155.88 = 37,513.92/x
3. Step 3: Cross multiply
   90,105.76x = 135,155.88 × 37,513.92
4. Step 4: Simplify right side
   90,105.76x = 5,070,226,869.85
5. Step 5: Solve for x
   x = 5,070,226,869.85/90,105.76
6. Step 6: Final answer
   x = 56,269.73