Finding the Fourth Proportional to 89,176.77, 123,076.49 and 55,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,176.77 : 123,076.49 = 55,196.15 : x
2. Step 2: Convert to fraction form
   89,176.77/123,076.49 = 55,196.15/x
3. Step 3: Cross multiply
   89,176.77x = 123,076.49 × 55,196.15
4. Step 4: Simplify right side
   89,176.77x = 6,793,347,512.15
5. Step 5: Solve for x
   x = 6,793,347,512.15/89,176.77
6. Step 6: Final answer
   x = 76,178.44