Finding the Fourth Proportional to 13,247.98, 18,282.69 and 7,280.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,247.98 : 18,282.69 = 7,280.10 : x
2. Step 2: Convert to fraction form
   13,247.98/18,282.69 = 7,280.10/x
3. Step 3: Cross multiply
   13,247.98x = 18,282.69 × 7,280.10
4. Step 4: Simplify right side
   13,247.98x = 133,099,811.47
5. Step 5: Solve for x
   x = 133,099,811.47/13,247.98
6. Step 6: Final answer
   x = 10,046.80