Finding the Fourth Proportional to 78,161.59, 107,863.09 and 42,351.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,161.59 : 107,863.09 = 42,351.59 : x
2. Step 2: Convert to fraction form
   78,161.59/107,863.09 = 42,351.59/x
3. Step 3: Cross multiply
   78,161.59x = 107,863.09 × 42,351.59
4. Step 4: Simplify right side
   78,161.59x = 4,568,173,527.59
5. Step 5: Solve for x
   x = 4,568,173,527.59/78,161.59
6. Step 6: Final answer
   x = 58,445.25