Finding the Fourth Proportional to 31,074.48, 42,882.68 and 16,927.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,074.48 : 42,882.68 = 16,927.28 : x
2. Step 2: Convert to fraction form
   31,074.48/42,882.68 = 16,927.28/x
3. Step 3: Cross multiply
   31,074.48x = 42,882.68 × 16,927.28
4. Step 4: Simplify right side
   31,074.48x = 725,887,131.51
5. Step 5: Solve for x
   x = 725,887,131.51/31,074.48
6. Step 6: Final answer
   x = 23,359.59