Finding the Fourth Proportional to 5,392.10, 8,039.78 and 5,293.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,392.10 : 8,039.78 = 5,293.69 : x
2. Step 2: Convert to fraction form
   5,392.10/8,039.78 = 5,293.69/x
3. Step 3: Cross multiply
   5,392.10x = 8,039.78 × 5,293.69
4. Step 4: Simplify right side
   5,392.10x = 42,560,076.27
5. Step 5: Solve for x
   x = 42,560,076.27/5,392.10
6. Step 6: Final answer
   x = 7,893.04