Finding the Fourth Proportional to 142,359.06, 213,535.89 and 42,519.54

Step by Step Solution

1. Step 1: Write the proportion equation
   142,359.06 : 213,535.89 = 42,519.54 : x
2. Step 2: Convert to fraction form
   142,359.06/213,535.89 = 42,519.54/x
3. Step 3: Cross multiply
   142,359.06x = 213,535.89 × 42,519.54
4. Step 4: Simplify right side
   142,359.06x = 9,079,447,816.29
5. Step 5: Solve for x
   x = 9,079,447,816.29/142,359.06
6. Step 6: Final answer
   x = 63,778.50