Finding the Fourth Proportional to 11,245.33, 16,868.90 and 3,847.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,245.33 : 16,868.90 = 3,847.80 : x
2. Step 2: Convert to fraction form
   11,245.33/16,868.90 = 3,847.80/x
3. Step 3: Cross multiply
   11,245.33x = 16,868.90 × 3,847.80
4. Step 4: Simplify right side
   11,245.33x = 64,908,153.42
5. Step 5: Solve for x
   x = 64,908,153.42/11,245.33
6. Step 6: Final answer
   x = 5,772.01