Finding the Fourth Proportional to 11,290.23, 16,929.59 and 6,611.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,290.23 : 16,929.59 = 6,611.27 : x
2. Step 2: Convert to fraction form
   11,290.23/16,929.59 = 6,611.27/x
3. Step 3: Cross multiply
   11,290.23x = 16,929.59 × 6,611.27
4. Step 4: Simplify right side
   11,290.23x = 111,925,972.78
5. Step 5: Solve for x
   x = 111,925,972.78/11,290.23
6. Step 6: Final answer
   x = 9,913.52