Finding the Fourth Proportional to 9,327.51, 12,871.17 and 5,498.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,327.51 : 12,871.17 = 5,498.55 : x
2. Step 2: Convert to fraction form
   9,327.51/12,871.17 = 5,498.55/x
3. Step 3: Cross multiply
   9,327.51x = 12,871.17 × 5,498.55
4. Step 4: Simplify right side
   9,327.51x = 70,772,771.80
5. Step 5: Solve for x
   x = 70,772,771.80/9,327.51
6. Step 6: Final answer
   x = 7,587.53