Finding the Fourth Proportional to 13,842.05, 19,103.06 and 7,875.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,842.05 : 19,103.06 = 7,875.64 : x
2. Step 2: Convert to fraction form
   13,842.05/19,103.06 = 7,875.64/x
3. Step 3: Cross multiply
   13,842.05x = 19,103.06 × 7,875.64
4. Step 4: Simplify right side
   13,842.05x = 150,448,736.32
5. Step 5: Solve for x
   x = 150,448,736.32/13,842.05
6. Step 6: Final answer
   x = 10,868.96