Finding the Fourth Proportional to 13,872.22, 19,143.58 and 7,584.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,872.22 : 19,143.58 = 7,584.59 : x
2. Step 2: Convert to fraction form
   13,872.22/19,143.58 = 7,584.59/x
3. Step 3: Cross multiply
   13,872.22x = 19,143.58 × 7,584.59
4. Step 4: Simplify right side
   13,872.22x = 145,196,205.43
5. Step 5: Solve for x
   x = 145,196,205.43/13,872.22
6. Step 6: Final answer
   x = 10,466.69