Finding the Fourth Proportional to 31,288.71, 43,175.52 and 17,859.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,288.71 : 43,175.52 = 17,859.87 : x
2. Step 2: Convert to fraction form
   31,288.71/43,175.52 = 17,859.87/x
3. Step 3: Cross multiply
   31,288.71x = 43,175.52 × 17,859.87
4. Step 4: Simplify right side
   31,288.71x = 771,109,174.38
5. Step 5: Solve for x
   x = 771,109,174.38/31,288.71
6. Step 6: Final answer
   x = 24,644.97