Finding the Fourth Proportional to 31,089.18, 42,902.82 and 16,942.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,089.18 : 42,902.82 = 16,942.26 : x
2. Step 2: Convert to fraction form
   31,089.18/42,902.82 = 16,942.26/x
3. Step 3: Cross multiply
   31,089.18x = 42,902.82 × 16,942.26
4. Step 4: Simplify right side
   31,089.18x = 726,870,731.17
5. Step 5: Solve for x
   x = 726,870,731.17/31,089.18
6. Step 6: Final answer
   x = 23,380.18