Finding the Fourth Proportional to 11,836.25, 17,755.43 and 3,402.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,836.25 : 17,755.43 = 3,402.80 : x
2. Step 2: Convert to fraction form
   11,836.25/17,755.43 = 3,402.80/x
3. Step 3: Cross multiply
   11,836.25x = 17,755.43 × 3,402.80
4. Step 4: Simplify right side
   11,836.25x = 60,418,071.41
5. Step 5: Solve for x
   x = 60,418,071.41/11,836.25
6. Step 6: Final answer
   x = 5,104.50