Finding the Fourth Proportional to 31,022.76, 42,810.84 and 16,875.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,022.76 : 42,810.84 = 16,875.48 : x
2. Step 2: Convert to fraction form
   31,022.76/42,810.84 = 16,875.48/x
3. Step 3: Cross multiply
   31,022.76x = 42,810.84 × 16,875.48
4. Step 4: Simplify right side
   31,022.76x = 722,453,474.20
5. Step 5: Solve for x
   x = 722,453,474.20/31,022.76
6. Step 6: Final answer
   x = 23,287.85