Finding the Fourth Proportional to 31,069.16, 42,875.48 and 16,922.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,069.16 : 42,875.48 = 16,922.06 : x
2. Step 2: Convert to fraction form
   31,069.16/42,875.48 = 16,922.06/x
3. Step 3: Cross multiply
   31,069.16x = 42,875.48 × 16,922.06
4. Step 4: Simplify right side
   31,069.16x = 725,541,273.02
5. Step 5: Solve for x
   x = 725,541,273.02/31,069.16
6. Step 6: Final answer
   x = 23,352.46