Finding the Fourth Proportional to 9,313.62, 12,852.84 and 5,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,313.62 : 12,852.84 = 5,064.72 : x
2. Step 2: Convert to fraction form
   9,313.62/12,852.84 = 5,064.72/x
3. Step 3: Cross multiply
   9,313.62x = 12,852.84 × 5,064.72
4. Step 4: Simplify right side
   9,313.62x = 65,096,035.80
5. Step 5: Solve for x
   x = 65,096,035.80/9,313.62
6. Step 6: Final answer
   x = 6,989.34