Finding the Fourth Proportional to 30,757.86, 42,445.85 and 16,610.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,757.86 : 42,445.85 = 16,610.71 : x
2. Step 2: Convert to fraction form
   30,757.86/42,445.85 = 16,610.71/x
3. Step 3: Cross multiply
   30,757.86x = 42,445.85 × 16,610.71
4. Step 4: Simplify right side
   30,757.86x = 705,055,705.05
5. Step 5: Solve for x
   x = 705,055,705.05/30,757.86
6. Step 6: Final answer
   x = 22,922.78