Finding the Fourth Proportional to 9,309.89, 12,847.72 and 5,060.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.89 : 12,847.72 = 5,060.96 : x
2. Step 2: Convert to fraction form
   9,309.89/12,847.72 = 5,060.96/x
3. Step 3: Cross multiply
   9,309.89x = 12,847.72 × 5,060.96
4. Step 4: Simplify right side
   9,309.89x = 65,021,707.47
5. Step 5: Solve for x
   x = 65,021,707.47/9,309.89
6. Step 6: Final answer
   x = 6,984.15