Finding the Fourth Proportional to 89,615.16, 123,671.61 and 49,329.81

Step by Step Solution

1. Step 1: Write the proportion equation
   89,615.16 : 123,671.61 = 49,329.81 : x
2. Step 2: Convert to fraction form
   89,615.16/123,671.61 = 49,329.81/x
3. Step 3: Cross multiply
   89,615.16x = 123,671.61 × 49,329.81
4. Step 4: Simplify right side
   89,615.16x = 6,100,697,023.69
5. Step 5: Solve for x
   x = 6,100,697,023.69/89,615.16
6. Step 6: Final answer
   x = 68,076.62