Finding the Fourth Proportional to 9,165.31, 12,648.12 and 4,973.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165.31 : 12,648.12 = 4,973.56 : x
2. Step 2: Convert to fraction form
   9,165.31/12,648.12 = 4,973.56/x
3. Step 3: Cross multiply
   9,165.31x = 12,648.12 × 4,973.56
4. Step 4: Simplify right side
   9,165.31x = 62,906,183.71
5. Step 5: Solve for x
   x = 62,906,183.71/9,165.31
6. Step 6: Final answer
   x = 6,863.51