Finding the Fourth Proportional to 31,645.72, 43,672.61 and 17,499.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,645.72 : 43,672.61 = 17,499.48 : x
2. Step 2: Convert to fraction form
   31,645.72/43,672.61 = 17,499.48/x
3. Step 3: Cross multiply
   31,645.72x = 43,672.61 × 17,499.48
4. Step 4: Simplify right side
   31,645.72x = 764,247,965.24
5. Step 5: Solve for x
   x = 764,247,965.24/31,645.72
6. Step 6: Final answer
   x = 24,150.12