Finding the Fourth Proportional to 9,802.88, 13,528.28 and 5,553.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.88 : 13,528.28 = 5,553.84 : x
2. Step 2: Convert to fraction form
   9,802.88/13,528.28 = 5,553.84/x
3. Step 3: Cross multiply
   9,802.88x = 13,528.28 × 5,553.84
4. Step 4: Simplify right side
   9,802.88x = 75,133,902.60
5. Step 5: Solve for x
   x = 75,133,902.60/9,802.88
6. Step 6: Final answer
   x = 7,664.47