Finding the Fourth Proportional to 12,348.20, 17,041.86 and 7,876.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,348.20 : 17,041.86 = 7,876.04 : x
2. Step 2: Convert to fraction form
   12,348.20/17,041.86 = 7,876.04/x
3. Step 3: Cross multiply
   12,348.20x = 17,041.86 × 7,876.04
4. Step 4: Simplify right side
   12,348.20x = 134,222,371.03
5. Step 5: Solve for x
   x = 134,222,371.03/12,348.20
6. Step 6: Final answer
   x = 10,869.79