Finding the Fourth Proportional to 11,801.22, 17,704.89 and 4,405.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,801.22 : 17,704.89 = 4,405.74 : x
2. Step 2: Convert to fraction form
   11,801.22/17,704.89 = 4,405.74/x
3. Step 3: Cross multiply
   11,801.22x = 17,704.89 × 4,405.74
4. Step 4: Simplify right side
   11,801.22x = 78,003,142.07
5. Step 5: Solve for x
   x = 78,003,142.07/11,801.22
6. Step 6: Final answer
   x = 6,609.75