Finding the Fourth Proportional to 10,388.89, 15,586.79 and 3,369.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.89 : 15,586.79 = 3,369.13 : x
2. Step 2: Convert to fraction form
   10,388.89/15,586.79 = 3,369.13/x
3. Step 3: Cross multiply
   10,388.89x = 15,586.79 × 3,369.13
4. Step 4: Simplify right side
   10,388.89x = 52,513,895.45
5. Step 5: Solve for x
   x = 52,513,895.45/10,388.89
6. Step 6: Final answer
   x = 5,054.81