Finding the Fourth Proportional to 7,142.34, 9,850.89 and 5,459.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142.34 : 9,850.89 = 5,459.52 : x
2. Step 2: Convert to fraction form
   7,142.34/9,850.89 = 5,459.52/x
3. Step 3: Cross multiply
   7,142.34x = 9,850.89 × 5,459.52
4. Step 4: Simplify right side
   7,142.34x = 53,781,130.97
5. Step 5: Solve for x
   x = 53,781,130.97/7,142.34
6. Step 6: Final answer
   x = 7,529.90