Finding the Fourth Proportional to 9,165.51, 12,648.33 and 4,973.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165.51 : 12,648.33 = 4,973.76 : x
2. Step 2: Convert to fraction form
   9,165.51/12,648.33 = 4,973.76/x
3. Step 3: Cross multiply
   9,165.51x = 12,648.33 × 4,973.76
4. Step 4: Simplify right side
   9,165.51x = 62,909,757.82
5. Step 5: Solve for x
   x = 62,909,757.82/9,165.51
6. Step 6: Final answer
   x = 6,863.75