Finding the Fourth Proportional to 13,786.71, 19,025.52 and 7,499.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,786.71 : 19,025.52 = 7,499.09 : x
2. Step 2: Convert to fraction form
   13,786.71/19,025.52 = 7,499.09/x
3. Step 3: Cross multiply
   13,786.71x = 19,025.52 × 7,499.09
4. Step 4: Simplify right side
   13,786.71x = 142,673,991.65
5. Step 5: Solve for x
   x = 142,673,991.65/13,786.71
6. Step 6: Final answer
   x = 10,348.66