Finding the Fourth Proportional to 31,221.57, 43,085.88 and 17,074.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,221.57 : 43,085.88 = 17,074.38 : x
2. Step 2: Convert to fraction form
   31,221.57/43,085.88 = 17,074.38/x
3. Step 3: Cross multiply
   31,221.57x = 43,085.88 × 17,074.38
4. Step 4: Simplify right side
   31,221.57x = 735,664,687.75
5. Step 5: Solve for x
   x = 735,664,687.75/31,221.57
6. Step 6: Final answer
   x = 23,562.71