Finding the Fourth Proportional to 9,066.05, 12,666.55 and 9,066.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.05 : 12,666.55 = 9,066.05 : x
2. Step 2: Convert to fraction form
   9,066.05/12,666.55 = 9,066.05/x
3. Step 3: Cross multiply
   9,066.05x = 12,666.55 × 9,066.05
4. Step 4: Simplify right side
   9,066.05x = 114,835,575.63
5. Step 5: Solve for x
   x = 114,835,575.63/9,066.05
6. Step 6: Final answer
   x = 12,666.55