Finding the Fourth Proportional to 9,047.69, 12,485.81 and 5,510.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047.69 : 12,485.81 = 5,510.90 : x
2. Step 2: Convert to fraction form
   9,047.69/12,485.81 = 5,510.90/x
3. Step 3: Cross multiply
   9,047.69x = 12,485.81 × 5,510.90
4. Step 4: Simplify right side
   9,047.69x = 68,808,095.32
5. Step 5: Solve for x
   x = 68,808,095.32/9,047.69
6. Step 6: Final answer
   x = 7,605.05