Finding the Fourth Proportional to 5,150.67, 7,137.85 and 5,052.21

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.67 : 7,137.85 = 5,052.21 : x
2. Step 2: Convert to fraction form
   5,150.67/7,137.85 = 5,052.21/x
3. Step 3: Cross multiply
   5,150.67x = 7,137.85 × 5,052.21
4. Step 4: Simplify right side
   5,150.67x = 36,061,904.52
5. Step 5: Solve for x
   x = 36,061,904.52/5,150.67
6. Step 6: Final answer
   x = 7,001.40