Finding the Fourth Proportional to 30,832.46, 42,548.78 and 16,685.29

Step by Step Solution

1. Step 1: Write the proportion equation
   30,832.46 : 42,548.78 = 16,685.29 : x
2. Step 2: Convert to fraction form
   30,832.46/42,548.78 = 16,685.29/x
3. Step 3: Cross multiply
   30,832.46x = 42,548.78 × 16,685.29
4. Step 4: Simplify right side
   30,832.46x = 709,938,437.28
5. Step 5: Solve for x
   x = 709,938,437.28/30,832.46
6. Step 6: Final answer
   x = 23,025.69