Finding the Fourth Proportional to 89,961.42, 124,146.15 and 49,677.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,961.42 : 124,146.15 = 49,677.72 : x
2. Step 2: Convert to fraction form
   89,961.42/124,146.15 = 49,677.72/x
3. Step 3: Cross multiply
   89,961.42x = 124,146.15 × 49,677.72
4. Step 4: Simplify right side
   89,961.42x = 6,167,297,678.78
5. Step 5: Solve for x
   x = 6,167,297,678.78/89,961.42
6. Step 6: Final answer
   x = 68,554.92