Finding the Fourth Proportional to 10,040.30, 13,855.42 and 5,564.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.30 : 13,855.42 = 5,564.03 : x
2. Step 2: Convert to fraction form
   10,040.30/13,855.42 = 5,564.03/x
3. Step 3: Cross multiply
   10,040.30x = 13,855.42 × 5,564.03
4. Step 4: Simplify right side
   10,040.30x = 77,091,972.54
5. Step 5: Solve for x
   x = 77,091,972.54/10,040.30
6. Step 6: Final answer
   x = 7,678.25