Finding the Fourth Proportional to 16,516.83, 22,787.67 and 9,438.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,516.83 : 22,787.67 = 9,438.24 : x
2. Step 2: Convert to fraction form
   16,516.83/22,787.67 = 9,438.24/x
3. Step 3: Cross multiply
   16,516.83x = 22,787.67 × 9,438.24
4. Step 4: Simplify right side
   16,516.83x = 215,075,498.50
5. Step 5: Solve for x
   x = 215,075,498.50/16,516.83
6. Step 6: Final answer
   x = 13,021.60