Finding the Fourth Proportional to 16,401.48, 22,631.76 and 9,327.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,401.48 : 22,631.76 = 9,327.12 : x
2. Step 2: Convert to fraction form
   16,401.48/22,631.76 = 9,327.12/x
3. Step 3: Cross multiply
   16,401.48x = 22,631.76 × 9,327.12
4. Step 4: Simplify right side
   16,401.48x = 211,089,141.33
5. Step 5: Solve for x
   x = 211,089,141.33/16,401.48
6. Step 6: Final answer
   x = 12,870.13