Finding the Fourth Proportional to 8,805.49, 12,150.88 and 5,078.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,805.49 : 12,150.88 = 5,078.77 : x
2. Step 2: Convert to fraction form
   8,805.49/12,150.88 = 5,078.77/x
3. Step 3: Cross multiply
   8,805.49x = 12,150.88 × 5,078.77
4. Step 4: Simplify right side
   8,805.49x = 61,711,524.82
5. Step 5: Solve for x
   x = 61,711,524.82/8,805.49
6. Step 6: Final answer
   x = 7,008.30