Finding the Fourth Proportional to 9,344.05, 12,892.51 and 5,564.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,344.05 : 12,892.51 = 5,564.79 : x
2. Step 2: Convert to fraction form
   9,344.05/12,892.51 = 5,564.79/x
3. Step 3: Cross multiply
   9,344.05x = 12,892.51 × 5,564.79
4. Step 4: Simplify right side
   9,344.05x = 71,744,018.44
5. Step 5: Solve for x
   x = 71,744,018.44/9,344.05
6. Step 6: Final answer
   x = 7,678.05