Finding the Fourth Proportional to 89,446.88, 123,428.66 and 49,160.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,446.88 : 123,428.66 = 49,160.18 : x
2. Step 2: Convert to fraction form
   89,446.88/123,428.66 = 49,160.18/x
3. Step 3: Cross multiply
   89,446.88x = 123,428.66 × 49,160.18
4. Step 4: Simplify right side
   89,446.88x = 6,067,775,142.76
5. Step 5: Solve for x
   x = 6,067,775,142.76/89,446.88
6. Step 6: Final answer
   x = 67,836.63