Finding the Fourth Proportional to 10,039.57, 13,855.16 and 5,563.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,039.57 : 13,855.16 = 5,563.22 : x
2. Step 2: Convert to fraction form
   10,039.57/13,855.16 = 5,563.22/x
3. Step 3: Cross multiply
   10,039.57x = 13,855.16 × 5,563.22
4. Step 4: Simplify right side
   10,039.57x = 77,079,349.10
5. Step 5: Solve for x
   x = 77,079,349.10/10,039.57
6. Step 6: Final answer
   x = 7,677.55