Finding the Fourth Proportional to 10,663.99, 15,999.06 and 3,269.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,663.99 : 15,999.06 = 3,269.54 : x
2. Step 2: Convert to fraction form
   10,663.99/15,999.06 = 3,269.54/x
3. Step 3: Cross multiply
   10,663.99x = 15,999.06 × 3,269.54
4. Step 4: Simplify right side
   10,663.99x = 52,309,618.89
5. Step 5: Solve for x
   x = 52,309,618.89/10,663.99
6. Step 6: Final answer
   x = 4,905.26