Finding the Fourth Proportional to 89,775.99, 123,885.30 and 49,490.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,775.99 : 123,885.30 = 49,490.10 : x
2. Step 2: Convert to fraction form
   89,775.99/123,885.30 = 49,490.10/x
3. Step 3: Cross multiply
   89,775.99x = 123,885.30 × 49,490.10
4. Step 4: Simplify right side
   89,775.99x = 6,131,095,885.53
5. Step 5: Solve for x
   x = 6,131,095,885.53/89,775.99
6. Step 6: Final answer
   x = 68,293.27