Finding the Fourth Proportional to 10,874.16, 16,326.48 and 7,200

Step by Step Solution

1. Step 1: Write the proportion equation
   10,874.16 : 16,326.48 = 7,200 : x
2. Step 2: Convert to fraction form
   10,874.16/16,326.48 = 7,200/x
3. Step 3: Cross multiply
   10,874.16x = 16,326.48 × 7,200
4. Step 4: Simplify right side
   10,874.16x = 117,550,656
5. Step 5: Solve for x
   x = 117,550,656/10,874.16
6. Step 6: Final answer
   x = 10,810.09