Finding the Fourth Proportional to 13,842.13, 19,103.16 and 7,875.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,842.13 : 19,103.16 = 7,875.72 : x
2. Step 2: Convert to fraction form
   13,842.13/19,103.16 = 7,875.72/x
3. Step 3: Cross multiply
   13,842.13x = 19,103.16 × 7,875.72
4. Step 4: Simplify right side
   13,842.13x = 150,451,139.28
5. Step 5: Solve for x
   x = 150,451,139.28/13,842.13
6. Step 6: Final answer
   x = 10,869.07