Finding the Fourth Proportional to 31,053.57, 42,852.51 and 16,906.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,053.57 : 42,852.51 = 16,906.38 : x
2. Step 2: Convert to fraction form
   31,053.57/42,852.51 = 16,906.38/x
3. Step 3: Cross multiply
   31,053.57x = 42,852.51 × 16,906.38
4. Step 4: Simplify right side
   31,053.57x = 724,480,818.01
5. Step 5: Solve for x
   x = 724,480,818.01/31,053.57
6. Step 6: Final answer
   x = 23,330.03