Finding the Fourth Proportional to 10,005.37, 13,802.25 and 8,119.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.37 : 13,802.25 = 8,119.09 : x
2. Step 2: Convert to fraction form
   10,005.37/13,802.25 = 8,119.09/x
3. Step 3: Cross multiply
   10,005.37x = 13,802.25 × 8,119.09
4. Step 4: Simplify right side
   10,005.37x = 112,061,634.34
5. Step 5: Solve for x
   x = 112,061,634.34/10,005.37
6. Step 6: Final answer
   x = 11,200.15