Finding the Fourth Proportional to 10,040.15, 13,855.49 and 5,563.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.15 : 13,855.49 = 5,563.98 : x
2. Step 2: Convert to fraction form
   10,040.15/13,855.49 = 5,563.98/x
3. Step 3: Cross multiply
   10,040.15x = 13,855.49 × 5,563.98
4. Step 4: Simplify right side
   10,040.15x = 77,091,634.61
5. Step 5: Solve for x
   x = 77,091,634.61/10,040.15
6. Step 6: Final answer
   x = 7,678.33