Finding the Fourth Proportional to 142,454.89, 213,621.58 and 42,613.48

Step by Step Solution

1. Step 1: Write the proportion equation
   142,454.89 : 213,621.58 = 42,613.48 : x
2. Step 2: Convert to fraction form
   142,454.89/213,621.58 = 42,613.48/x
3. Step 3: Cross multiply
   142,454.89x = 213,621.58 × 42,613.48
4. Step 4: Simplify right side
   142,454.89x = 9,103,158,926.90
5. Step 5: Solve for x
   x = 9,103,158,926.90/142,454.89
6. Step 6: Final answer
   x = 63,902.05