Finding the Fourth Proportional to 8,300.32, 12,433.20 and 6,077.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.32 : 12,433.20 = 6,077.60 : x
2. Step 2: Convert to fraction form
   8,300.32/12,433.20 = 6,077.60/x
3. Step 3: Cross multiply
   8,300.32x = 12,433.20 × 6,077.60
4. Step 4: Simplify right side
   8,300.32x = 75,564,016.32
5. Step 5: Solve for x
   x = 75,564,016.32/8,300.32
6. Step 6: Final answer
   x = 9,103.75