Finding the Fourth Proportional to 5,788.86, 7,988.61 and 3,136.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,788.86 : 7,988.61 = 3,136.28 : x
2. Step 2: Convert to fraction form
   5,788.86/7,988.61 = 3,136.28/x
3. Step 3: Cross multiply
   5,788.86x = 7,988.61 × 3,136.28
4. Step 4: Simplify right side
   5,788.86x = 25,054,477.83
5. Step 5: Solve for x
   x = 25,054,477.83/5,788.86
6. Step 6: Final answer
   x = 4,328.05