Finding the Fourth Proportional to 11,456.70, 17,184.43 and 3,136.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,456.70 : 17,184.43 = 3,136.12 : x
2. Step 2: Convert to fraction form
   11,456.70/17,184.43 = 3,136.12/x
3. Step 3: Cross multiply
   11,456.70x = 17,184.43 × 3,136.12
4. Step 4: Simplify right side
   11,456.70x = 53,892,434.61
5. Step 5: Solve for x
   x = 53,892,434.61/11,456.70
6. Step 6: Final answer
   x = 4,704.01