Finding the Fourth Proportional to 142,082.28, 213,123.36 and 42,242.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,082.28 : 213,123.36 = 42,242.04 : x
2. Step 2: Convert to fraction form
   142,082.28/213,123.36 = 42,242.04/x
3. Step 3: Cross multiply
   142,082.28x = 213,123.36 × 42,242.04
4. Step 4: Simplify right side
   142,082.28x = 9,002,765,498.05
5. Step 5: Solve for x
   x = 9,002,765,498.05/142,082.28
6. Step 6: Final answer
   x = 63,363.04