Finding the Fourth Proportional to 31,260.58, 43,139.61 and 17,113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,260.58 : 43,139.61 = 17,113.42 : x
2. Step 2: Convert to fraction form
   31,260.58/43,139.61 = 17,113.42/x
3. Step 3: Cross multiply
   31,260.58x = 43,139.61 × 17,113.42
4. Step 4: Simplify right side
   31,260.58x = 738,266,156.72
5. Step 5: Solve for x
   x = 738,266,156.72/31,260.58
6. Step 6: Final answer
   x = 23,616.52