Finding the Fourth Proportional to 13,789.24, 19,025.89 and 8,124.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,789.24 : 19,025.89 = 8,124.30 : x
2. Step 2: Convert to fraction form
   13,789.24/19,025.89 = 8,124.30/x
3. Step 3: Cross multiply
   13,789.24x = 19,025.89 × 8,124.30
4. Step 4: Simplify right side
   13,789.24x = 154,572,017.82
5. Step 5: Solve for x
   x = 154,572,017.82/13,789.24
6. Step 6: Final answer
   x = 11,209.61