Finding the Fourth Proportional to 16,141.87, 22,274.76 and 9,429.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,141.87 : 22,274.76 = 9,429.40 : x
2. Step 2: Convert to fraction form
   16,141.87/22,274.76 = 9,429.40/x
3. Step 3: Cross multiply
   16,141.87x = 22,274.76 × 9,429.40
4. Step 4: Simplify right side
   16,141.87x = 210,037,621.94
5. Step 5: Solve for x
   x = 210,037,621.94/16,141.87
6. Step 6: Final answer
   x = 13,011.98