Finding the Fourth Proportional to 108,778.98, 150,121.17 and 61,036.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,778.98 : 150,121.17 = 61,036.50 : x
2. Step 2: Convert to fraction form
   108,778.98/150,121.17 = 61,036.50/x
3. Step 3: Cross multiply
   108,778.98x = 150,121.17 × 61,036.50
4. Step 4: Simplify right side
   108,778.98x = 9,162,870,792.71
5. Step 5: Solve for x
   x = 9,162,870,792.71/108,778.98
6. Step 6: Final answer
   x = 84,233.84