Finding the Fourth Proportional to 5,136.99, 7,089.72 and 3,814.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,136.99 : 7,089.72 = 3,814.47 : x
2. Step 2: Convert to fraction form
   5,136.99/7,089.72 = 3,814.47/x
3. Step 3: Cross multiply
   5,136.99x = 7,089.72 × 3,814.47
4. Step 4: Simplify right side
   5,136.99x = 27,043,524.25
5. Step 5: Solve for x
   x = 27,043,524.25/5,136.99
6. Step 6: Final answer
   x = 5,264.47