Finding the Fourth Proportional to 13,568.99, 18,725.36 and 7,825.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,568.99 : 18,725.36 = 7,825.10 : x
2. Step 2: Convert to fraction form
   13,568.99/18,725.36 = 7,825.10/x
3. Step 3: Cross multiply
   13,568.99x = 18,725.36 × 7,825.10
4. Step 4: Simplify right side
   13,568.99x = 146,527,681.78
5. Step 5: Solve for x
   x = 146,527,681.78/13,568.99
6. Step 6: Final answer
   x = 10,798.72