Finding the Fourth Proportional to 10,211.99, 15,314.20 and 3,636.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,211.99 : 15,314.20 = 3,636.41 : x
2. Step 2: Convert to fraction form
   10,211.99/15,314.20 = 3,636.41/x
3. Step 3: Cross multiply
   10,211.99x = 15,314.20 × 3,636.41
4. Step 4: Simplify right side
   10,211.99x = 55,688,710.02
5. Step 5: Solve for x
   x = 55,688,710.02/10,211.99
6. Step 6: Final answer
   x = 5,453.27