Finding the Fourth Proportional to 142,244.79, 213,367.08 and 42,402.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,244.79 : 213,367.08 = 42,402.42 : x
2. Step 2: Convert to fraction form
   142,244.79/213,367.08 = 42,402.42/x
3. Step 3: Cross multiply
   142,244.79x = 213,367.08 × 42,402.42
4. Step 4: Simplify right side
   142,244.79x = 9,047,280,540.33
5. Step 5: Solve for x
   x = 9,047,280,540.33/142,244.79
6. Step 6: Final answer
   x = 63,603.60