Finding the Fourth Proportional to 8,795.79, 12,138.53 and 5,019.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,795.79 : 12,138.53 = 5,019.57 : x
2. Step 2: Convert to fraction form
   8,795.79/12,138.53 = 5,019.57/x
3. Step 3: Cross multiply
   8,795.79x = 12,138.53 × 5,019.57
4. Step 4: Simplify right side
   8,795.79x = 60,930,175.93
5. Step 5: Solve for x
   x = 60,930,175.93/8,795.79
6. Step 6: Final answer
   x = 6,927.20