Finding the Fourth Proportional to 9,328.57, 12,875.05 and 5,551.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,328.57 : 12,875.05 = 5,551.94 : x
2. Step 2: Convert to fraction form
   9,328.57/12,875.05 = 5,551.94/x
3. Step 3: Cross multiply
   9,328.57x = 12,875.05 × 5,551.94
4. Step 4: Simplify right side
   9,328.57x = 71,481,544.22
5. Step 5: Solve for x
   x = 71,481,544.22/9,328.57
6. Step 6: Final answer
   x = 7,662.65