Finding the Fourth Proportional to 31,082.80, 42,891.66 and 17,470.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,082.80 : 42,891.66 = 17,470.10 : x
2. Step 2: Convert to fraction form
   31,082.80/42,891.66 = 17,470.10/x
3. Step 3: Cross multiply
   31,082.80x = 42,891.66 × 17,470.10
4. Step 4: Simplify right side
   31,082.80x = 749,321,589.37
5. Step 5: Solve for x
   x = 749,321,589.37/31,082.80
6. Step 6: Final answer
   x = 24,107.27