Finding the Fourth Proportional to 9,627.78, 13,286.56 and 5,651.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,627.78 : 13,286.56 = 5,651.76 : x
2. Step 2: Convert to fraction form
   9,627.78/13,286.56 = 5,651.76/x
3. Step 3: Cross multiply
   9,627.78x = 13,286.56 × 5,651.76
4. Step 4: Simplify right side
   9,627.78x = 75,092,448.35
5. Step 5: Solve for x
   x = 75,092,448.35/9,627.78
6. Step 6: Final answer
   x = 7,799.56