Finding the Fourth Proportional to 142,254.98, 213,393.34 and 42,407.54

Step by Step Solution

1. Step 1: Write the proportion equation
   142,254.98 : 213,393.34 = 42,407.54 : x
2. Step 2: Convert to fraction form
   142,254.98/213,393.34 = 42,407.54/x
3. Step 3: Cross multiply
   142,254.98x = 213,393.34 × 42,407.54
4. Step 4: Simplify right side
   142,254.98x = 9,049,486,601.78
5. Step 5: Solve for x
   x = 9,049,486,601.78/142,254.98
6. Step 6: Final answer
   x = 63,614.55