Finding the Fourth Proportional to 30,912.02, 42,658.71 and 16,765.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,912.02 : 42,658.71 = 16,765.10 : x
2. Step 2: Convert to fraction form
   30,912.02/42,658.71 = 16,765.10/x
3. Step 3: Cross multiply
   30,912.02x = 42,658.71 × 16,765.10
4. Step 4: Simplify right side
   30,912.02x = 715,177,539.02
5. Step 5: Solve for x
   x = 715,177,539.02/30,912.02
6. Step 6: Final answer
   x = 23,135.90