Finding the Fourth Proportional to 9,143.04, 12,617.11 and 5,109.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143.04 : 12,617.11 = 5,109.76 : x
2. Step 2: Convert to fraction form
   9,143.04/12,617.11 = 5,109.76/x
3. Step 3: Cross multiply
   9,143.04x = 12,617.11 × 5,109.76
4. Step 4: Simplify right side
   9,143.04x = 64,470,426.15
5. Step 5: Solve for x
   x = 64,470,426.15/9,143.04
6. Step 6: Final answer
   x = 7,051.31