Finding the Fourth Proportional to 11,847.07, 17,772.43 and 5,613.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,847.07 : 17,772.43 = 5,613.22 : x
2. Step 2: Convert to fraction form
   11,847.07/17,772.43 = 5,613.22/x
3. Step 3: Cross multiply
   11,847.07x = 17,772.43 × 5,613.22
4. Step 4: Simplify right side
   11,847.07x = 99,760,559.52
5. Step 5: Solve for x
   x = 99,760,559.52/11,847.07
6. Step 6: Final answer
   x = 8,420.69