Finding the Fourth Proportional to 142,397.18, 213,626.45 and 42,565.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,397.18 : 213,626.45 = 42,565.49 : x
2. Step 2: Convert to fraction form
   142,397.18/213,626.45 = 42,565.49/x
3. Step 3: Cross multiply
   142,397.18x = 213,626.45 × 42,565.49
4. Step 4: Simplify right side
   142,397.18x = 9,093,114,521.21
5. Step 5: Solve for x
   x = 9,093,114,521.21/142,397.18
6. Step 6: Final answer
   x = 63,857.41