Finding the Fourth Proportional to 11,406.98, 17,113.22 and 3,615.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406.98 : 17,113.22 = 3,615.80 : x
2. Step 2: Convert to fraction form
   11,406.98/17,113.22 = 3,615.80/x
3. Step 3: Cross multiply
   11,406.98x = 17,113.22 × 3,615.80
4. Step 4: Simplify right side
   11,406.98x = 61,877,904.35
5. Step 5: Solve for x
   x = 61,877,904.35/11,406.98
6. Step 6: Final answer
   x = 5,424.56