Finding the Fourth Proportional to 9,309.60, 12,847.32 and 5,060.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.60 : 12,847.32 = 5,060.70 : x
2. Step 2: Convert to fraction form
   9,309.60/12,847.32 = 5,060.70/x
3. Step 3: Cross multiply
   9,309.60x = 12,847.32 × 5,060.70
4. Step 4: Simplify right side
   9,309.60x = 65,016,432.32
5. Step 5: Solve for x
   x = 65,016,432.32/9,309.60
6. Step 6: Final answer
   x = 6,983.81