Finding the Fourth Proportional to 16,669.77, 23,003.35 and 9,114.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,669.77 : 23,003.35 = 9,114.59 : x
2. Step 2: Convert to fraction form
   16,669.77/23,003.35 = 9,114.59/x
3. Step 3: Cross multiply
   16,669.77x = 23,003.35 × 9,114.59
4. Step 4: Simplify right side
   16,669.77x = 209,666,138.60
5. Step 5: Solve for x
   x = 209,666,138.60/16,669.77
6. Step 6: Final answer
   x = 12,577.63