Finding the Fourth Proportional to 16,700.01, 23,046.27 and 9,146.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,700.01 : 23,046.27 = 9,146.21 : x
2. Step 2: Convert to fraction form
   16,700.01/23,046.27 = 9,146.21/x
3. Step 3: Cross multiply
   16,700.01x = 23,046.27 × 9,146.21
4. Step 4: Simplify right side
   16,700.01x = 210,785,909.91
5. Step 5: Solve for x
   x = 210,785,909.91/16,700.01
6. Step 6: Final answer
   x = 12,621.90