Finding the Fourth Proportional to 9,805.02, 13,530.13 and 5,771.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.02 : 13,530.13 = 5,771.22 : x
2. Step 2: Convert to fraction form
   9,805.02/13,530.13 = 5,771.22/x
3. Step 3: Cross multiply
   9,805.02x = 13,530.13 × 5,771.22
4. Step 4: Simplify right side
   9,805.02x = 78,085,356.86
5. Step 5: Solve for x
   x = 78,085,356.86/9,805.02
6. Step 6: Final answer
   x = 7,963.81