Finding the Fourth Proportional to 13,838.06, 19,099.59 and 8,801.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,838.06 : 19,099.59 = 8,801.30 : x
2. Step 2: Convert to fraction form
   13,838.06/19,099.59 = 8,801.30/x
3. Step 3: Cross multiply
   13,838.06x = 19,099.59 × 8,801.30
4. Step 4: Simplify right side
   13,838.06x = 168,101,221.47
5. Step 5: Solve for x
   x = 168,101,221.47/13,838.06
6. Step 6: Final answer
   x = 12,147.74