Finding the Fourth Proportional to 78,162.59, 107,864.47 and 42,352.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,162.59 : 107,864.47 = 42,352.59 : x
2. Step 2: Convert to fraction form
   78,162.59/107,864.47 = 42,352.59/x
3. Step 3: Cross multiply
   78,162.59x = 107,864.47 × 42,352.59
4. Step 4: Simplify right side
   78,162.59x = 4,568,339,673.48
5. Step 5: Solve for x
   x = 4,568,339,673.48/78,162.59
6. Step 6: Final answer
   x = 58,446.63