Finding the Fourth Proportional to 108,755.56, 149,996.10 and 89,859.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,755.56 : 149,996.10 = 89,859.88 : x
2. Step 2: Convert to fraction form
   108,755.56/149,996.10 = 89,859.88/x
3. Step 3: Cross multiply
   108,755.56x = 149,996.10 × 89,859.88
4. Step 4: Simplify right side
   108,755.56x = 13,478,631,546.47
5. Step 5: Solve for x
   x = 13,478,631,546.47/108,755.56
6. Step 6: Final answer
   x = 123,935.10