Finding the Fourth Proportional to 31,384.98, 43,312.02 and 17,238.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,384.98 : 43,312.02 = 17,238.12 : x
2. Step 2: Convert to fraction form
   31,384.98/43,312.02 = 17,238.12/x
3. Step 3: Cross multiply
   31,384.98x = 43,312.02 × 17,238.12
4. Step 4: Simplify right side
   31,384.98x = 746,617,798.20
5. Step 5: Solve for x
   x = 746,617,798.20/31,384.98
6. Step 6: Final answer
   x = 23,789.02