Finding the Fourth Proportional to 31,079, 42,890.38 and 17,650.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,079 : 42,890.38 = 17,650.28 : x
2. Step 2: Convert to fraction form
   31,079/42,890.38 = 17,650.28/x
3. Step 3: Cross multiply
   31,079x = 42,890.38 × 17,650.28
4. Step 4: Simplify right side
   31,079x = 757,027,216.31
5. Step 5: Solve for x
   x = 757,027,216.31/31,079
6. Step 6: Final answer
   x = 24,358.16