Finding the Fourth Proportional to 105,989.76, 146,165.40 and 69,627.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,989.76 : 146,165.40 = 69,627.24 : x
2. Step 2: Convert to fraction form
   105,989.76/146,165.40 = 69,627.24/x
3. Step 3: Cross multiply
   105,989.76x = 146,165.40 × 69,627.24
4. Step 4: Simplify right side
   105,989.76x = 10,177,093,385.50
5. Step 5: Solve for x
   x = 10,177,093,385.50/105,989.76
6. Step 6: Final answer
   x = 96,019.59