Finding the Fourth Proportional to 78,436.26, 108,242.72 and 42,626.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,436.26 : 108,242.72 = 42,626.27 : x
2. Step 2: Convert to fraction form
   78,436.26/108,242.72 = 42,626.27/x
3. Step 3: Cross multiply
   78,436.26x = 108,242.72 × 42,626.27
4. Step 4: Simplify right side
   78,436.26x = 4,613,982,653.91
5. Step 5: Solve for x
   x = 4,613,982,653.91/78,436.26
6. Step 6: Final answer
   x = 58,824.62