Finding the Fourth Proportional to 5,196.70, 7,285.10 and 5,196.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.70 : 7,285.10 = 5,196.70 : x
2. Step 2: Convert to fraction form
   5,196.70/7,285.10 = 5,196.70/x
3. Step 3: Cross multiply
   5,196.70x = 7,285.10 × 5,196.70
4. Step 4: Simplify right side
   5,196.70x = 37,858,479.17
5. Step 5: Solve for x
   x = 37,858,479.17/5,196.70
6. Step 6: Final answer
   x = 7,285.10