Finding the Fourth Proportional to 9,940.74, 13,718.18 and 5,464.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.74 : 13,718.18 = 5,464.76 : x
2. Step 2: Convert to fraction form
   9,940.74/13,718.18 = 5,464.76/x
3. Step 3: Cross multiply
   9,940.74x = 13,718.18 × 5,464.76
4. Step 4: Simplify right side
   9,940.74x = 74,966,561.34
5. Step 5: Solve for x
   x = 74,966,561.34/9,940.74
6. Step 6: Final answer
   x = 7,541.35