Finding the Fourth Proportional to 105,545.36, 145,634.12 and 60,824.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,545.36 : 145,634.12 = 60,824.72 : x
2. Step 2: Convert to fraction form
   105,545.36/145,634.12 = 60,824.72/x
3. Step 3: Cross multiply
   105,545.36x = 145,634.12 × 60,824.72
4. Step 4: Simplify right side
   105,545.36x = 8,858,154,571.45
5. Step 5: Solve for x
   x = 8,858,154,571.45/105,545.36
6. Step 6: Final answer
   x = 83,927.47