Finding the Fourth Proportional to 31,435.24, 43,381.28 and 17,288.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,435.24 : 43,381.28 = 17,288.04 : x
2. Step 2: Convert to fraction form
   31,435.24/43,381.28 = 17,288.04/x
3. Step 3: Cross multiply
   31,435.24x = 43,381.28 × 17,288.04
4. Step 4: Simplify right side
   31,435.24x = 749,977,303.89
5. Step 5: Solve for x
   x = 749,977,303.89/31,435.24
6. Step 6: Final answer
   x = 23,857.85