Finding the Fourth Proportional to 31,329.76, 43,238.13 and 17,902.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,329.76 : 43,238.13 = 17,902.09 : x
2. Step 2: Convert to fraction form
   31,329.76/43,238.13 = 17,902.09/x
3. Step 3: Cross multiply
   31,329.76x = 43,238.13 × 17,902.09
4. Step 4: Simplify right side
   31,329.76x = 774,052,894.69
5. Step 5: Solve for x
   x = 774,052,894.69/31,329.76
6. Step 6: Final answer
   x = 24,706.63