Finding the Fourth Proportional to 9,047.39, 12,487.88 and 5,510.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047.39 : 12,487.88 = 5,510.57 : x
2. Step 2: Convert to fraction form
   9,047.39/12,487.88 = 5,510.57/x
3. Step 3: Cross multiply
   9,047.39x = 12,487.88 × 5,510.57
4. Step 4: Simplify right side
   9,047.39x = 68,815,336.89
5. Step 5: Solve for x
   x = 68,815,336.89/9,047.39
6. Step 6: Final answer
   x = 7,606.10