Finding the Fourth Proportional to 7,280.04, 10,047.06 and 4,485

Step by Step Solution

1. Step 1: Write the proportion equation
   7,280.04 : 10,047.06 = 4,485 : x
2. Step 2: Convert to fraction form
   7,280.04/10,047.06 = 4,485/x
3. Step 3: Cross multiply
   7,280.04x = 10,047.06 × 4,485
4. Step 4: Simplify right side
   7,280.04x = 45,061,064.10
5. Step 5: Solve for x
   x = 45,061,064.10/7,280.04
6. Step 6: Final answer
   x = 6,189.67