Finding the Fourth Proportional to 11,407.98, 17,114.72 and 3,616.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,407.98 : 17,114.72 = 3,616.80 : x
2. Step 2: Convert to fraction form
   11,407.98/17,114.72 = 3,616.80/x
3. Step 3: Cross multiply
   11,407.98x = 17,114.72 × 3,616.80
4. Step 4: Simplify right side
   11,407.98x = 61,900,519.30
5. Step 5: Solve for x
   x = 61,900,519.30/11,407.98
6. Step 6: Final answer
   x = 5,426.07