Finding the Fourth Proportional to 7,942.21, 10,955.49 and 5,253.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,942.21 : 10,955.49 = 5,253.50 : x
2. Step 2: Convert to fraction form
   7,942.21/10,955.49 = 5,253.50/x
3. Step 3: Cross multiply
   7,942.21x = 10,955.49 × 5,253.50
4. Step 4: Simplify right side
   7,942.21x = 57,554,666.72
5. Step 5: Solve for x
   x = 57,554,666.72/7,942.21
6. Step 6: Final answer
   x = 7,246.68