Finding the Fourth Proportional to 13,806.72, 19,052.94 and 7,519.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,806.72 : 19,052.94 = 7,519.20 : x
2. Step 2: Convert to fraction form
   13,806.72/19,052.94 = 7,519.20/x
3. Step 3: Cross multiply
   13,806.72x = 19,052.94 × 7,519.20
4. Step 4: Simplify right side
   13,806.72x = 143,262,866.45
5. Step 5: Solve for x
   x = 143,262,866.45/13,806.72
6. Step 6: Final answer
   x = 10,376.31