Finding the Fourth Proportional to 108,752.56, 149,991.96 and 89,856.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,752.56 : 149,991.96 = 89,856.88 : x
2. Step 2: Convert to fraction form
   108,752.56/149,991.96 = 89,856.88/x
3. Step 3: Cross multiply
   108,752.56x = 149,991.96 × 89,856.88
4. Step 4: Simplify right side
   108,752.56x = 13,477,809,550.68
5. Step 5: Solve for x
   x = 13,477,809,550.68/108,752.56
6. Step 6: Final answer
   x = 123,930.96