Finding the Fourth Proportional to 31,761.18, 43,830.72 and 17,613.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,761.18 : 43,830.72 = 17,613.72 : x
2. Step 2: Convert to fraction form
   31,761.18/43,830.72 = 17,613.72/x
3. Step 3: Cross multiply
   31,761.18x = 43,830.72 × 17,613.72
4. Step 4: Simplify right side
   31,761.18x = 772,022,029.48
5. Step 5: Solve for x
   x = 772,022,029.48/31,761.18
6. Step 6: Final answer
   x = 24,307.10