Finding the Fourth Proportional to 12,566.50, 18,849.89 and 3,801.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,566.50 : 18,849.89 = 3,801.78 : x
2. Step 2: Convert to fraction form
   12,566.50/18,849.89 = 3,801.78/x
3. Step 3: Cross multiply
   12,566.50x = 18,849.89 × 3,801.78
4. Step 4: Simplify right side
   12,566.50x = 71,663,144.31
5. Step 5: Solve for x
   x = 71,663,144.31/12,566.50
6. Step 6: Final answer
   x = 5,702.71