Finding the Fourth Proportional to 31,679.38, 43,715.72 and 17,531.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,679.38 : 43,715.72 = 17,531.52 : x
2. Step 2: Convert to fraction form
   31,679.38/43,715.72 = 17,531.52/x
3. Step 3: Cross multiply
   31,679.38x = 43,715.72 × 17,531.52
4. Step 4: Simplify right side
   31,679.38x = 766,403,019.49
5. Step 5: Solve for x
   x = 766,403,019.49/31,679.38
6. Step 6: Final answer
   x = 24,192.49