Finding the Fourth Proportional to 9,611.38, 13,266.13 and 5,422.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,611.38 : 13,266.13 = 5,422.06 : x
2. Step 2: Convert to fraction form
   9,611.38/13,266.13 = 5,422.06/x
3. Step 3: Cross multiply
   9,611.38x = 13,266.13 × 5,422.06
4. Step 4: Simplify right side
   9,611.38x = 71,929,752.83
5. Step 5: Solve for x
   x = 71,929,752.83/9,611.38
6. Step 6: Final answer
   x = 7,483.81