Finding the Fourth Proportional to 9,165.57, 12,648.43 and 4,973.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165.57 : 12,648.43 = 4,973.82 : x
2. Step 2: Convert to fraction form
   9,165.57/12,648.43 = 4,973.82/x
3. Step 3: Cross multiply
   9,165.57x = 12,648.43 × 4,973.82
4. Step 4: Simplify right side
   9,165.57x = 62,910,972.89
5. Step 5: Solve for x
   x = 62,910,972.89/9,165.57
6. Step 6: Final answer
   x = 6,863.84