Finding the Fourth Proportional to 9,802.94, 13,528.01 and 5,772.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.94 : 13,528.01 = 5,772.11 : x
2. Step 2: Convert to fraction form
   9,802.94/13,528.01 = 5,772.11/x
3. Step 3: Cross multiply
   9,802.94x = 13,528.01 × 5,772.11
4. Step 4: Simplify right side
   9,802.94x = 78,085,065.30
5. Step 5: Solve for x
   x = 78,085,065.30/9,802.94
6. Step 6: Final answer
   x = 7,965.48