Finding the Fourth Proportional to 30,969.32, 42,737.88 and 16,822.17

Step by Step Solution

1. Step 1: Write the proportion equation
   30,969.32 : 42,737.88 = 16,822.17 : x
2. Step 2: Convert to fraction form
   30,969.32/42,737.88 = 16,822.17/x
3. Step 3: Cross multiply
   30,969.32x = 42,737.88 × 16,822.17
4. Step 4: Simplify right side
   30,969.32x = 718,943,882.80
5. Step 5: Solve for x
   x = 718,943,882.80/30,969.32
6. Step 6: Final answer
   x = 23,214.71