Finding the Fourth Proportional to 16,407, 22,641.66 and 10,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,407 : 22,641.66 = 10,123.02 : x
2. Step 2: Convert to fraction form
   16,407/22,641.66 = 10,123.02/x
3. Step 3: Cross multiply
   16,407x = 22,641.66 × 10,123.02
4. Step 4: Simplify right side
   16,407x = 229,201,977.01
5. Step 5: Solve for x
   x = 229,201,977.01/16,407
6. Step 6: Final answer
   x = 13,969.77