Finding the Fourth Proportional to 9,335.37, 12,880.04 and 5,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,335.37 : 12,880.04 = 5,555.50 : x
2. Step 2: Convert to fraction form
   9,335.37/12,880.04 = 5,555.50/x
3. Step 3: Cross multiply
   9,335.37x = 12,880.04 × 5,555.50
4. Step 4: Simplify right side
   9,335.37x = 71,555,062.22
5. Step 5: Solve for x
   x = 71,555,062.22/9,335.37
6. Step 6: Final answer
   x = 7,664.95