Finding the Fourth Proportional to 115,410.48, 159,293 and 67,679.20

Step by Step Solution

1. Step 1: Write the proportion equation
   115,410.48 : 159,293 = 67,679.20 : x
2. Step 2: Convert to fraction form
   115,410.48/159,293 = 67,679.20/x
3. Step 3: Cross multiply
   115,410.48x = 159,293 × 67,679.20
4. Step 4: Simplify right side
   115,410.48x = 10,780,822,805.60
5. Step 5: Solve for x
   x = 10,780,822,805.60/115,410.48
6. Step 6: Final answer
   x = 93,412.86