Finding the Fourth Proportional to 16,200.99, 22,348.83 and 11,156.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.99 : 22,348.83 = 11,156.47 : x
2. Step 2: Convert to fraction form
   16,200.99/22,348.83 = 11,156.47/x
3. Step 3: Cross multiply
   16,200.99x = 22,348.83 × 11,156.47
4. Step 4: Simplify right side
   16,200.99x = 249,334,037.39
5. Step 5: Solve for x
   x = 249,334,037.39/16,200.99
6. Step 6: Final answer
   x = 15,390.05