Finding the Fourth Proportional to 13,513.42, 20,272.56 and 5,722.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513.42 : 20,272.56 = 5,722.84 : x
2. Step 2: Convert to fraction form
   13,513.42/20,272.56 = 5,722.84/x
3. Step 3: Cross multiply
   13,513.42x = 20,272.56 × 5,722.84
4. Step 4: Simplify right side
   13,513.42x = 116,016,617.27
5. Step 5: Solve for x
   x = 116,016,617.27/13,513.42
6. Step 6: Final answer
   x = 8,585.29