Finding the Fourth Proportional to 16,478.51, 22,740.41 and 9,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,478.51 : 22,740.41 = 9,308.72 : x
2. Step 2: Convert to fraction form
   16,478.51/22,740.41 = 9,308.72/x
3. Step 3: Cross multiply
   16,478.51x = 22,740.41 × 9,308.72
4. Step 4: Simplify right side
   16,478.51x = 211,684,189.50
5. Step 5: Solve for x
   x = 211,684,189.50/16,478.51
6. Step 6: Final answer
   x = 12,846.08