Finding the Fourth Proportional to 4,951.98, 7,428.69 and 2,642.22

Step by Step Solution

1. Step 1: Write the proportion equation
   4,951.98 : 7,428.69 = 2,642.22 : x
2. Step 2: Convert to fraction form
   4,951.98/7,428.69 = 2,642.22/x
3. Step 3: Cross multiply
   4,951.98x = 7,428.69 × 2,642.22
4. Step 4: Simplify right side
   4,951.98x = 19,628,233.29
5. Step 5: Solve for x
   x = 19,628,233.29/4,951.98
6. Step 6: Final answer
   x = 3,963.71