Finding the Fourth Proportional to 11,406.29, 17,109.27 and 3,615.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406.29 : 17,109.27 = 3,615.12 : x
2. Step 2: Convert to fraction form
   11,406.29/17,109.27 = 3,615.12/x
3. Step 3: Cross multiply
   11,406.29x = 17,109.27 × 3,615.12
4. Step 4: Simplify right side
   11,406.29x = 61,852,064.16
5. Step 5: Solve for x
   x = 61,852,064.16/11,406.29
6. Step 6: Final answer
   x = 5,422.63