Finding the Fourth Proportional to 8,123.52, 12,198.78 and 5,064.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.52 : 12,198.78 = 5,064.96 : x
2. Step 2: Convert to fraction form
   8,123.52/12,198.78 = 5,064.96/x
3. Step 3: Cross multiply
   8,123.52x = 12,198.78 × 5,064.96
4. Step 4: Simplify right side
   8,123.52x = 61,786,332.75
5. Step 5: Solve for x
   x = 61,786,332.75/8,123.52
6. Step 6: Final answer
   x = 7,605.86