Finding the Fourth Proportional to 89,597.79, 123,642.34 and 49,311.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,597.79 : 123,642.34 = 49,311.54 : x
2. Step 2: Convert to fraction form
   89,597.79/123,642.34 = 49,311.54/x
3. Step 3: Cross multiply
   89,597.79x = 123,642.34 × 49,311.54
4. Step 4: Simplify right side
   89,597.79x = 6,096,994,071.32
5. Step 5: Solve for x
   x = 6,096,994,071.32/89,597.79
6. Step 6: Final answer
   x = 68,048.49