Finding the Fourth Proportional to 9,914.63, 13,682.72 and 5,724.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,914.63 : 13,682.72 = 5,724.23 : x
2. Step 2: Convert to fraction form
   9,914.63/13,682.72 = 5,724.23/x
3. Step 3: Cross multiply
   9,914.63x = 13,682.72 × 5,724.23
4. Step 4: Simplify right side
   9,914.63x = 78,322,982.20
5. Step 5: Solve for x
   x = 78,322,982.20/9,914.63
6. Step 6: Final answer
   x = 7,899.74