Finding the Fourth Proportional to 31,069.72, 42,876.71 and 16,922.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,069.72 : 42,876.71 = 16,922.56 : x
2. Step 2: Convert to fraction form
   31,069.72/42,876.71 = 16,922.56/x
3. Step 3: Cross multiply
   31,069.72x = 42,876.71 × 16,922.56
4. Step 4: Simplify right side
   31,069.72x = 725,583,505.77
5. Step 5: Solve for x
   x = 725,583,505.77/31,069.72
6. Step 6: Final answer
   x = 23,353.40