Finding the Fourth Proportional to 72,132.29, 99,525.50 and 41,899.65

Step by Step Solution

1. Step 1: Write the proportion equation
   72,132.29 : 99,525.50 = 41,899.65 : x
2. Step 2: Convert to fraction form
   72,132.29/99,525.50 = 41,899.65/x
3. Step 3: Cross multiply
   72,132.29x = 99,525.50 × 41,899.65
4. Step 4: Simplify right side
   72,132.29x = 4,170,083,406.58
5. Step 5: Solve for x
   x = 4,170,083,406.58/72,132.29
6. Step 6: Final answer
   x = 57,811.61