Finding the Fourth Proportional to 31,425.36, 43,369.32 and 17,278.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,425.36 : 43,369.32 = 17,278.56 : x
2. Step 2: Convert to fraction form
   31,425.36/43,369.32 = 17,278.56/x
3. Step 3: Cross multiply
   31,425.36x = 43,369.32 × 17,278.56
4. Step 4: Simplify right side
   31,425.36x = 749,359,397.78
5. Step 5: Solve for x
   x = 749,359,397.78/31,425.36
6. Step 6: Final answer
   x = 23,845.69