Finding the Fourth Proportional to 17,936.82, 26,906.22 and 5,457.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,936.82 : 26,906.22 = 5,457.30 : x
2. Step 2: Convert to fraction form
   17,936.82/26,906.22 = 5,457.30/x
3. Step 3: Cross multiply
   17,936.82x = 26,906.22 × 5,457.30
4. Step 4: Simplify right side
   17,936.82x = 146,835,314.41
5. Step 5: Solve for x
   x = 146,835,314.41/17,936.82
6. Step 6: Final answer
   x = 8,186.25