Finding the Fourth Proportional to 9,066.61, 12,508.77 and 5,709.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.61 : 12,508.77 = 5,709.73 : x
2. Step 2: Convert to fraction form
   9,066.61/12,508.77 = 5,709.73/x
3. Step 3: Cross multiply
   9,066.61x = 12,508.77 × 5,709.73
4. Step 4: Simplify right side
   9,066.61x = 71,421,699.33
5. Step 5: Solve for x
   x = 71,421,699.33/9,066.61
6. Step 6: Final answer
   x = 7,877.44