Finding the Fourth Proportional to 13,859.58, 19,126.09 and 7,571.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,859.58 : 19,126.09 = 7,571.82 : x
2. Step 2: Convert to fraction form
   13,859.58/19,126.09 = 7,571.82/x
3. Step 3: Cross multiply
   13,859.58x = 19,126.09 × 7,571.82
4. Step 4: Simplify right side
   13,859.58x = 144,819,310.78
5. Step 5: Solve for x
   x = 144,819,310.78/13,859.58
6. Step 6: Final answer
   x = 10,449.04