Finding the Fourth Proportional to 40,111.29, 55,226.88 and 35,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   40,111.29 : 55,226.88 = 35,328.15 : x
2. Step 2: Convert to fraction form
   40,111.29/55,226.88 = 35,328.15/x
3. Step 3: Cross multiply
   40,111.29x = 55,226.88 × 35,328.15
4. Step 4: Simplify right side
   40,111.29x = 1,951,063,500.67
5. Step 5: Solve for x
   x = 1,951,063,500.67/40,111.29
6. Step 6: Final answer
   x = 48,641.26