Finding the Fourth Proportional to 91,500.28, 137,272.62 and 29,170.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,500.28 : 137,272.62 = 29,170.72 : x
2. Step 2: Convert to fraction form
   91,500.28/137,272.62 = 29,170.72/x
3. Step 3: Cross multiply
   91,500.28x = 137,272.62 × 29,170.72
4. Step 4: Simplify right side
   91,500.28x = 4,004,341,161.69
5. Step 5: Solve for x
   x = 4,004,341,161.69/91,500.28
6. Step 6: Final answer
   x = 43,763.16