Finding the Fourth Proportional to 10,855.30, 16,284.18 and 3,457.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,855.30 : 16,284.18 = 3,457.98 : x
2. Step 2: Convert to fraction form
   10,855.30/16,284.18 = 3,457.98/x
3. Step 3: Cross multiply
   10,855.30x = 16,284.18 × 3,457.98
4. Step 4: Simplify right side
   10,855.30x = 56,310,368.76
5. Step 5: Solve for x
   x = 56,310,368.76/10,855.30
6. Step 6: Final answer
   x = 5,187.36