Finding the Fourth Proportional to 9,802.57, 13,527.11 and 5,553.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.57 : 13,527.11 = 5,553.54 : x
2. Step 2: Convert to fraction form
   9,802.57/13,527.11 = 5,553.54/x
3. Step 3: Cross multiply
   9,802.57x = 13,527.11 × 5,553.54
4. Step 4: Simplify right side
   9,802.57x = 75,123,346.47
5. Step 5: Solve for x
   x = 75,123,346.47/9,802.57
6. Step 6: Final answer
   x = 7,663.64