Finding the Fourth Proportional to 31,500.78, 43,471.07 and 17,353.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,500.78 : 43,471.07 = 17,353.62 : x
2. Step 2: Convert to fraction form
   31,500.78/43,471.07 = 17,353.62/x
3. Step 3: Cross multiply
   31,500.78x = 43,471.07 × 17,353.62
4. Step 4: Simplify right side
   31,500.78x = 754,380,429.77
5. Step 5: Solve for x
   x = 754,380,429.77/31,500.78
6. Step 6: Final answer
   x = 23,947.99