Finding the Fourth Proportional to 89,642.82, 123,706.10 and 49,355.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,642.82 : 123,706.10 = 49,355.75 : x
2. Step 2: Convert to fraction form
   89,642.82/123,706.10 = 49,355.75/x
3. Step 3: Cross multiply
   89,642.82x = 123,706.10 × 49,355.75
4. Step 4: Simplify right side
   89,642.82x = 6,105,607,530.95
5. Step 5: Solve for x
   x = 6,105,607,530.95/89,642.82
6. Step 6: Final answer
   x = 68,110.39