Finding the Fourth Proportional to 31,436.04, 43,380.54 and 17,288.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,436.04 : 43,380.54 = 17,288.04 : x
2. Step 2: Convert to fraction form
   31,436.04/43,380.54 = 17,288.04/x
3. Step 3: Cross multiply
   31,436.04x = 43,380.54 × 17,288.04
4. Step 4: Simplify right side
   31,436.04x = 749,964,510.74
5. Step 5: Solve for x
   x = 749,964,510.74/31,436.04
6. Step 6: Final answer
   x = 23,856.84