Finding the Fourth Proportional to 17,136.91, 25,699.86 and 5,447.39

Step by Step Solution

1. Step 1: Write the proportion equation
   17,136.91 : 25,699.86 = 5,447.39 : x
2. Step 2: Convert to fraction form
   17,136.91/25,699.86 = 5,447.39/x
3. Step 3: Cross multiply
   17,136.91x = 25,699.86 × 5,447.39
4. Step 4: Simplify right side
   17,136.91x = 139,997,224.62
5. Step 5: Solve for x
   x = 139,997,224.62/17,136.91
6. Step 6: Final answer
   x = 8,169.34