Finding the Fourth Proportional to 30,900.30, 42,642.29 and 16,753.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,900.30 : 42,642.29 = 16,753.05 : x
2. Step 2: Convert to fraction form
   30,900.30/42,642.29 = 16,753.05/x
3. Step 3: Cross multiply
   30,900.30x = 42,642.29 × 16,753.05
4. Step 4: Simplify right side
   30,900.30x = 714,388,332.72
5. Step 5: Solve for x
   x = 714,388,332.72/30,900.30
6. Step 6: Final answer
   x = 23,119.14