Finding the Fourth Proportional to 9,257.78, 12,776.01 and 5,066.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,257.78 : 12,776.01 = 5,066.03 : x
2. Step 2: Convert to fraction form
   9,257.78/12,776.01 = 5,066.03/x
3. Step 3: Cross multiply
   9,257.78x = 12,776.01 × 5,066.03
4. Step 4: Simplify right side
   9,257.78x = 64,723,649.94
5. Step 5: Solve for x
   x = 64,723,649.94/9,257.78
6. Step 6: Final answer
   x = 6,991.27