Finding the Fourth Proportional to 9,310.52, 12,848.52 and 5,118.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,310.52 : 12,848.52 = 5,118.78 : x
2. Step 2: Convert to fraction form
   9,310.52/12,848.52 = 5,118.78/x
3. Step 3: Cross multiply
   9,310.52x = 12,848.52 × 5,118.78
4. Step 4: Simplify right side
   9,310.52x = 65,768,747.21
5. Step 5: Solve for x
   x = 65,768,747.21/9,310.52
6. Step 6: Final answer
   x = 7,063.92