Finding the Fourth Proportional to 11,611.35, 17,404.61 and 5,364.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,611.35 : 17,404.61 = 5,364.09 : x
2. Step 2: Convert to fraction form
   11,611.35/17,404.61 = 5,364.09/x
3. Step 3: Cross multiply
   11,611.35x = 17,404.61 × 5,364.09
4. Step 4: Simplify right side
   11,611.35x = 93,359,867.63
5. Step 5: Solve for x
   x = 93,359,867.63/11,611.35
6. Step 6: Final answer
   x = 8,040.40