Finding the Fourth Proportional to 10,040.18, 13,855.54 and 5,563.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.18 : 13,855.54 = 5,563.99 : x
2. Step 2: Convert to fraction form
   10,040.18/13,855.54 = 5,563.99/x
3. Step 3: Cross multiply
   10,040.18x = 13,855.54 × 5,563.99
4. Step 4: Simplify right side
   10,040.18x = 77,092,037.46
5. Step 5: Solve for x
   x = 77,092,037.46/10,040.18
6. Step 6: Final answer
   x = 7,678.36