Finding the Fourth Proportional to 31,030.24, 42,821.92 and 16,883.19

Step by Step Solution

1. Step 1: Write the proportion equation
   31,030.24 : 42,821.92 = 16,883.19 : x
2. Step 2: Convert to fraction form
   31,030.24/42,821.92 = 16,883.19/x
3. Step 3: Cross multiply
   31,030.24x = 42,821.92 × 16,883.19
4. Step 4: Simplify right side
   31,030.24x = 722,970,611.52
5. Step 5: Solve for x
   x = 722,970,611.52/31,030.24
6. Step 6: Final answer
   x = 23,298.90