Finding the Fourth Proportional to 9,165.54, 12,648.50 and 4,973.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165.54 : 12,648.50 = 4,973.79 : x
2. Step 2: Convert to fraction form
   9,165.54/12,648.50 = 4,973.79/x
3. Step 3: Cross multiply
   9,165.54x = 12,648.50 × 4,973.79
4. Step 4: Simplify right side
   9,165.54x = 62,910,957.95
5. Step 5: Solve for x
   x = 62,910,957.95/9,165.54
6. Step 6: Final answer
   x = 6,863.86