Finding the Fourth Proportional to 12,919.04, 17,826.72 and 7,328.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,919.04 : 17,826.72 = 7,328.96 : x
2. Step 2: Convert to fraction form
   12,919.04/17,826.72 = 7,328.96/x
3. Step 3: Cross multiply
   12,919.04x = 17,826.72 × 7,328.96
4. Step 4: Simplify right side
   12,919.04x = 130,651,317.81
5. Step 5: Solve for x
   x = 130,651,317.81/12,919.04
6. Step 6: Final answer
   x = 10,113.08