Finding the Fourth Proportional to 78,162.31, 107,864.09 and 42,352.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,162.31 : 107,864.09 = 42,352.29 : x
2. Step 2: Convert to fraction form
   78,162.31/107,864.09 = 42,352.29/x
3. Step 3: Cross multiply
   78,162.31x = 107,864.09 × 42,352.29
4. Step 4: Simplify right side
   78,162.31x = 4,568,291,220.27
5. Step 5: Solve for x
   x = 4,568,291,220.27/78,162.31
6. Step 6: Final answer
   x = 58,446.22