Finding the Fourth Proportional to 142,035.72, 213,082.73 and 42,187.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,035.72 : 213,082.73 = 42,187.02 : x
2. Step 2: Convert to fraction form
   142,035.72/213,082.73 = 42,187.02/x
3. Step 3: Cross multiply
   142,035.72x = 213,082.73 × 42,187.02
4. Step 4: Simplify right side
   142,035.72x = 8,989,325,392.16
5. Step 5: Solve for x
   x = 8,989,325,392.16/142,035.72
6. Step 6: Final answer
   x = 63,289.19