Finding the Fourth Proportional to 31,049.18, 42,846.54 and 16,902.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,049.18 : 42,846.54 = 16,902.08 : x
2. Step 2: Convert to fraction form
   31,049.18/42,846.54 = 16,902.08/x
3. Step 3: Cross multiply
   31,049.18x = 42,846.54 × 16,902.08
4. Step 4: Simplify right side
   31,049.18x = 724,195,646.80
5. Step 5: Solve for x
   x = 724,195,646.80/31,049.18
6. Step 6: Final answer
   x = 23,324.15