Finding the Fourth Proportional to 13,456.80, 18,568.22 and 7,488.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,456.80 : 18,568.22 = 7,488.44 : x
2. Step 2: Convert to fraction form
   13,456.80/18,568.22 = 7,488.44/x
3. Step 3: Cross multiply
   13,456.80x = 18,568.22 × 7,488.44
4. Step 4: Simplify right side
   13,456.80x = 139,047,001.38
5. Step 5: Solve for x
   x = 139,047,001.38/13,456.80
6. Step 6: Final answer
   x = 10,332.84