Finding the Fourth Proportional to 31,022.52, 42,810.89 and 16,875.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,022.52 : 42,810.89 = 16,875.42 : x
2. Step 2: Convert to fraction form
   31,022.52/42,810.89 = 16,875.42/x
3. Step 3: Cross multiply
   31,022.52x = 42,810.89 × 16,875.42
4. Step 4: Simplify right side
   31,022.52x = 722,451,664.95
5. Step 5: Solve for x
   x = 722,451,664.95/31,022.52
6. Step 6: Final answer
   x = 23,287.97