Finding the Fourth Proportional to 9,802.75, 13,526.31 and 5,553.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.75 : 13,526.31 = 5,553.57 : x
2. Step 2: Convert to fraction form
   9,802.75/13,526.31 = 5,553.57/x
3. Step 3: Cross multiply
   9,802.75x = 13,526.31 × 5,553.57
4. Step 4: Simplify right side
   9,802.75x = 75,119,309.43
5. Step 5: Solve for x
   x = 75,119,309.43/9,802.75
6. Step 6: Final answer
   x = 7,663.09