Finding the Fourth Proportional to 30,861.93, 42,589.52 and 16,714.78

Step by Step Solution

1. Step 1: Write the proportion equation
   30,861.93 : 42,589.52 = 16,714.78 : x
2. Step 2: Convert to fraction form
   30,861.93/42,589.52 = 16,714.78/x
3. Step 3: Cross multiply
   30,861.93x = 42,589.52 × 16,714.78
4. Step 4: Simplify right side
   30,861.93x = 711,874,392.42
5. Step 5: Solve for x
   x = 711,874,392.42/30,861.93
6. Step 6: Final answer
   x = 23,066.42