Finding the Fourth Proportional to 9,871.02, 13,622.24 and 5,394.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,871.02 : 13,622.24 = 5,394.96 : x
2. Step 2: Convert to fraction form
   9,871.02/13,622.24 = 5,394.96/x
3. Step 3: Cross multiply
   9,871.02x = 13,622.24 × 5,394.96
4. Step 4: Simplify right side
   9,871.02x = 73,491,453.40
5. Step 5: Solve for x
   x = 73,491,453.40/9,871.02
6. Step 6: Final answer
   x = 7,445.17