Finding the Fourth Proportional to 89,997.42, 124,185.79 and 49,708.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,997.42 : 124,185.79 = 49,708.78 : x
2. Step 2: Convert to fraction form
   89,997.42/124,185.79 = 49,708.78/x
3. Step 3: Cross multiply
   89,997.42x = 124,185.79 × 49,708.78
4. Step 4: Simplify right side
   89,997.42x = 6,173,123,679.50
5. Step 5: Solve for x
   x = 6,173,123,679.50/89,997.42
6. Step 6: Final answer
   x = 68,592.23