Finding the Fourth Proportional to 31,010.29, 42,792.76 and 17,581.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.29 : 42,792.76 = 17,581.20 : x
2. Step 2: Convert to fraction form
   31,010.29/42,792.76 = 17,581.20/x
3. Step 3: Cross multiply
   31,010.29x = 42,792.76 × 17,581.20
4. Step 4: Simplify right side
   31,010.29x = 752,348,075.43
5. Step 5: Solve for x
   x = 752,348,075.43/31,010.29
6. Step 6: Final answer
   x = 24,261.24