Finding the Fourth Proportional to 16,724.72, 25,088.32 and 5,631.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,724.72 : 25,088.32 = 5,631.36 : x
2. Step 2: Convert to fraction form
   16,724.72/25,088.32 = 5,631.36/x
3. Step 3: Cross multiply
   16,724.72x = 25,088.32 × 5,631.36
4. Step 4: Simplify right side
   16,724.72x = 141,281,361.72
5. Step 5: Solve for x
   x = 141,281,361.72/16,724.72
6. Step 6: Final answer
   x = 8,447.46