Finding the Fourth Proportional to 13,783.71, 19,025.84 and 8,118.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,783.71 : 19,025.84 = 8,118.03 : x
2. Step 2: Convert to fraction form
   13,783.71/19,025.84 = 8,118.03/x
3. Step 3: Cross multiply
   13,783.71x = 19,025.84 × 8,118.03
4. Step 4: Simplify right side
   13,783.71x = 154,452,339.90
5. Step 5: Solve for x
   x = 154,452,339.90/13,783.71
6. Step 6: Final answer
   x = 11,205.43