Finding the Fourth Proportional to 9,047.94, 12,486.15 and 5,511.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047.94 : 12,486.15 = 5,511.15 : x
2. Step 2: Convert to fraction form
   9,047.94/12,486.15 = 5,511.15/x
3. Step 3: Cross multiply
   9,047.94x = 12,486.15 × 5,511.15
4. Step 4: Simplify right side
   9,047.94x = 68,813,045.57
5. Step 5: Solve for x
   x = 68,813,045.57/9,047.94
6. Step 6: Final answer
   x = 7,605.38