Finding the Fourth Proportional to 31,009.52, 42,793.36 and 16,862.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,009.52 : 42,793.36 = 16,862.42 : x
2. Step 2: Convert to fraction form
   31,009.52/42,793.36 = 16,862.42/x
3. Step 3: Cross multiply
   31,009.52x = 42,793.36 × 16,862.42
4. Step 4: Simplify right side
   31,009.52x = 721,599,609.53
5. Step 5: Solve for x
   x = 721,599,609.53/31,009.52
6. Step 6: Final answer
   x = 23,270.26