Finding the Fourth Proportional to 9,747.72, 13,447.56 and 6,210.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,747.72 : 13,447.56 = 6,210.12 : x
2. Step 2: Convert to fraction form
   9,747.72/13,447.56 = 6,210.12/x
3. Step 3: Cross multiply
   9,747.72x = 13,447.56 × 6,210.12
4. Step 4: Simplify right side
   9,747.72x = 83,510,961.31
5. Step 5: Solve for x
   x = 83,510,961.31/9,747.72
6. Step 6: Final answer
   x = 8,567.23