Finding the Fourth Proportional to 5,196.70, 7,785.45 and 4,851.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.70 : 7,785.45 = 4,851.10 : x
2. Step 2: Convert to fraction form
   5,196.70/7,785.45 = 4,851.10/x
3. Step 3: Cross multiply
   5,196.70x = 7,785.45 × 4,851.10
4. Step 4: Simplify right side
   5,196.70x = 37,767,996.50
5. Step 5: Solve for x
   x = 37,767,996.50/5,196.70
6. Step 6: Final answer
   x = 7,267.69