Finding the Fourth Proportional to 283,061.85, 424,242.86 and 142,743.93

Step by Step Solution

1. Step 1: Write the proportion equation
   283,061.85 : 424,242.86 = 142,743.93 : x
2. Step 2: Convert to fraction form
   283,061.85/424,242.86 = 142,743.93/x
3. Step 3: Cross multiply
   283,061.85x = 424,242.86 × 142,743.93
4. Step 4: Simplify right side
   283,061.85x = 60,558,092,397.12
5. Step 5: Solve for x
   x = 60,558,092,397.12/283,061.85
6. Step 6: Final answer
   x = 213,939.44