Finding the Fourth Proportional to 30,860.30, 42,586.71 and 16,713.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,860.30 : 42,586.71 = 16,713.02 : x
2. Step 2: Convert to fraction form
   30,860.30/42,586.71 = 16,713.02/x
3. Step 3: Cross multiply
   30,860.30x = 42,586.71 × 16,713.02
4. Step 4: Simplify right side
   30,860.30x = 711,752,535.96
5. Step 5: Solve for x
   x = 711,752,535.96/30,860.30
6. Step 6: Final answer
   x = 23,063.69