Finding the Fourth Proportional to 9,940.95, 13,718.88 and 5,464.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.95 : 13,718.88 = 5,464.89 : x
2. Step 2: Convert to fraction form
   9,940.95/13,718.88 = 5,464.89/x
3. Step 3: Cross multiply
   9,940.95x = 13,718.88 × 5,464.89
4. Step 4: Simplify right side
   9,940.95x = 74,972,170.12
5. Step 5: Solve for x
   x = 74,972,170.12/9,940.95
6. Step 6: Final answer
   x = 7,541.75