Finding the Fourth Proportional to 11,429.18, 17,143.66 and 3,109.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,429.18 : 17,143.66 = 3,109.07 : x
2. Step 2: Convert to fraction form
   11,429.18/17,143.66 = 3,109.07/x
3. Step 3: Cross multiply
   11,429.18x = 17,143.66 × 3,109.07
4. Step 4: Simplify right side
   11,429.18x = 53,300,856.17
5. Step 5: Solve for x
   x = 53,300,856.17/11,429.18
6. Step 6: Final answer
   x = 4,663.58