Finding the Fourth Proportional to 31,069.31, 42,875.82 and 16,922.19

Step by Step Solution

1. Step 1: Write the proportion equation
   31,069.31 : 42,875.82 = 16,922.19 : x
2. Step 2: Convert to fraction form
   31,069.31/42,875.82 = 16,922.19/x
3. Step 3: Cross multiply
   31,069.31x = 42,875.82 × 16,922.19
4. Step 4: Simplify right side
   31,069.31x = 725,552,772.45
5. Step 5: Solve for x
   x = 725,552,772.45/31,069.31
6. Step 6: Final answer
   x = 23,352.71