Finding the Fourth Proportional to 31,079.48, 42,889.28 and 16,932.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,079.48 : 42,889.28 = 16,932.33 : x
2. Step 2: Convert to fraction form
   31,079.48/42,889.28 = 16,932.33/x
3. Step 3: Cross multiply
   31,079.48x = 42,889.28 × 16,932.33
4. Step 4: Simplify right side
   31,079.48x = 726,215,357.76
5. Step 5: Solve for x
   x = 726,215,357.76/31,079.48
6. Step 6: Final answer
   x = 23,366.40