Finding the Fourth Proportional to 16,513.20, 22,782.69 and 9,342.11

Step by Step Solution

1. Step 1: Write the proportion equation
   16,513.20 : 22,782.69 = 9,342.11 : x
2. Step 2: Convert to fraction form
   16,513.20/22,782.69 = 9,342.11/x
3. Step 3: Cross multiply
   16,513.20x = 22,782.69 × 9,342.11
4. Step 4: Simplify right side
   16,513.20x = 212,838,453.03
5. Step 5: Solve for x
   x = 212,838,453.03/16,513.20
6. Step 6: Final answer
   x = 12,888.99