Finding the Fourth Proportional to 8,857.56, 12,223.04 and 5,078.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,857.56 : 12,223.04 = 5,078.01 : x
2. Step 2: Convert to fraction form
   8,857.56/12,223.04 = 5,078.01/x
3. Step 3: Cross multiply
   8,857.56x = 12,223.04 × 5,078.01
4. Step 4: Simplify right side
   8,857.56x = 62,068,719.35
5. Step 5: Solve for x
   x = 62,068,719.35/8,857.56
6. Step 6: Final answer
   x = 7,007.43