Finding the Fourth Proportional to 13,786.75, 19,025.81 and 7,499.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,786.75 : 19,025.81 = 7,499.17 : x
2. Step 2: Convert to fraction form
   13,786.75/19,025.81 = 7,499.17/x
3. Step 3: Cross multiply
   13,786.75x = 19,025.81 × 7,499.17
4. Step 4: Simplify right side
   13,786.75x = 142,677,783.58
5. Step 5: Solve for x
   x = 142,677,783.58/13,786.75
6. Step 6: Final answer
   x = 10,348.91