Finding the Fourth Proportional to 13,844.09, 19,104.18 and 7,875.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,844.09 : 19,104.18 = 7,875.20 : x
2. Step 2: Convert to fraction form
   13,844.09/19,104.18 = 7,875.20/x
3. Step 3: Cross multiply
   13,844.09x = 19,104.18 × 7,875.20
4. Step 4: Simplify right side
   13,844.09x = 150,449,238.34
5. Step 5: Solve for x
   x = 150,449,238.34/13,844.09
6. Step 6: Final answer
   x = 10,867.40