Finding the Fourth Proportional to 78,134.56, 107,825.68 and 42,324.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,134.56 : 107,825.68 = 42,324.80 : x
2. Step 2: Convert to fraction form
   78,134.56/107,825.68 = 42,324.80/x
3. Step 3: Cross multiply
   78,134.56x = 107,825.68 × 42,324.80
4. Step 4: Simplify right side
   78,134.56x = 4,563,700,340.86
5. Step 5: Solve for x
   x = 4,563,700,340.86/78,134.56
6. Step 6: Final answer
   x = 58,408.22