Finding the Fourth Proportional to 6,457.84, 8,913.72 and 3,806.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,457.84 : 8,913.72 = 3,806.10 : x
2. Step 2: Convert to fraction form
   6,457.84/8,913.72 = 3,806.10/x
3. Step 3: Cross multiply
   6,457.84x = 8,913.72 × 3,806.10
4. Step 4: Simplify right side
   6,457.84x = 33,926,509.69
5. Step 5: Solve for x
   x = 33,926,509.69/6,457.84
6. Step 6: Final answer
   x = 5,253.54