Finding the Fourth Proportional to 16,317.72, 24,487.50 and 10,478.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,317.72 : 24,487.50 = 10,478.43 : x
2. Step 2: Convert to fraction form
   16,317.72/24,487.50 = 10,478.43/x
3. Step 3: Cross multiply
   16,317.72x = 24,487.50 × 10,478.43
4. Step 4: Simplify right side
   16,317.72x = 256,590,554.63
5. Step 5: Solve for x
   x = 256,590,554.63/16,317.72
6. Step 6: Final answer
   x = 15,724.66