Finding the Fourth Proportional to 7,171.37, 9,893.72 and 5,287.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,171.37 : 9,893.72 = 5,287.43 : x
2. Step 2: Convert to fraction form
   7,171.37/9,893.72 = 5,287.43/x
3. Step 3: Cross multiply
   7,171.37x = 9,893.72 × 5,287.43
4. Step 4: Simplify right side
   7,171.37x = 52,312,276.03
5. Step 5: Solve for x
   x = 52,312,276.03/7,171.37
6. Step 6: Final answer
   x = 7,294.61