Finding the Fourth Proportional to 10,663.40, 15,996.98 and 3,641.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,663.40 : 15,996.98 = 3,641.77 : x
2. Step 2: Convert to fraction form
   10,663.40/15,996.98 = 3,641.77/x
3. Step 3: Cross multiply
   10,663.40x = 15,996.98 × 3,641.77
4. Step 4: Simplify right side
   10,663.40x = 58,257,341.89
5. Step 5: Solve for x
   x = 58,257,341.89/10,663.40
6. Step 6: Final answer
   x = 5,463.30