Finding the Fourth Proportional to 9,311.83, 12,850.58 and 5,063.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.83 : 12,850.58 = 5,063.18 : x
2. Step 2: Convert to fraction form
   9,311.83/12,850.58 = 5,063.18/x
3. Step 3: Cross multiply
   9,311.83x = 12,850.58 × 5,063.18
4. Step 4: Simplify right side
   9,311.83x = 65,064,748.05
5. Step 5: Solve for x
   x = 65,064,748.05/9,311.83
6. Step 6: Final answer
   x = 6,987.32