Finding the Fourth Proportional to 30,545.42, 42,152.31 and 17,116.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,545.42 : 42,152.31 = 17,116.61 : x
2. Step 2: Convert to fraction form
   30,545.42/42,152.31 = 17,116.61/x
3. Step 3: Cross multiply
   30,545.42x = 42,152.31 × 17,116.61
4. Step 4: Simplify right side
   30,545.42x = 721,504,650.87
5. Step 5: Solve for x
   x = 721,504,650.87/30,545.42
6. Step 6: Final answer
   x = 23,620.71