Finding the Fourth Proportional to 13,827.78, 20,743.43 and 5,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,827.78 : 20,743.43 = 5,061.42 : x
2. Step 2: Convert to fraction form
   13,827.78/20,743.43 = 5,061.42/x
3. Step 3: Cross multiply
   13,827.78x = 20,743.43 × 5,061.42
4. Step 4: Simplify right side
   13,827.78x = 104,991,186.16
5. Step 5: Solve for x
   x = 104,991,186.16/13,827.78
6. Step 6: Final answer
   x = 7,592.77