Finding the Fourth Proportional to 89,278.48, 123,206.16 and 48,989.89

Step by Step Solution

1. Step 1: Write the proportion equation
   89,278.48 : 123,206.16 = 48,989.89 : x
2. Step 2: Convert to fraction form
   89,278.48/123,206.16 = 48,989.89/x
3. Step 3: Cross multiply
   89,278.48x = 123,206.16 × 48,989.89
4. Step 4: Simplify right side
   89,278.48x = 6,035,856,225.72
5. Step 5: Solve for x
   x = 6,035,856,225.72/89,278.48
6. Step 6: Final answer
   x = 67,607.07