Finding the Fourth Proportional to 13,826.52, 19,081.86 and 8,448.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,826.52 : 19,081.86 = 8,448.60 : x
2. Step 2: Convert to fraction form
   13,826.52/19,081.86 = 8,448.60/x
3. Step 3: Cross multiply
   13,826.52x = 19,081.86 × 8,448.60
4. Step 4: Simplify right side
   13,826.52x = 161,215,002.40
5. Step 5: Solve for x
   x = 161,215,002.40/13,826.52
6. Step 6: Final answer
   x = 11,659.84