Finding the Fourth Proportional to 10,707.21, 16,056.81 and 3,685.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,707.21 : 16,056.81 = 3,685.23 : x
2. Step 2: Convert to fraction form
   10,707.21/16,056.81 = 3,685.23/x
3. Step 3: Cross multiply
   10,707.21x = 16,056.81 × 3,685.23
4. Step 4: Simplify right side
   10,707.21x = 59,173,037.92
5. Step 5: Solve for x
   x = 59,173,037.92/10,707.21
6. Step 6: Final answer
   x = 5,526.47