Finding the Fourth Proportional to 9,918.23, 13,687.23 and 5,441.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,918.23 : 13,687.23 = 5,441.94 : x
2. Step 2: Convert to fraction form
   9,918.23/13,687.23 = 5,441.94/x
3. Step 3: Cross multiply
   9,918.23x = 13,687.23 × 5,441.94
4. Step 4: Simplify right side
   9,918.23x = 74,485,084.43
5. Step 5: Solve for x
   x = 74,485,084.43/9,918.23
6. Step 6: Final answer
   x = 7,509.92