Finding the Fourth Proportional to 5,196.24, 7,780.28 and 3,459.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.24 : 7,780.28 = 3,459.28 : x
2. Step 2: Convert to fraction form
   5,196.24/7,780.28 = 3,459.28/x
3. Step 3: Cross multiply
   5,196.24x = 7,780.28 × 3,459.28
4. Step 4: Simplify right side
   5,196.24x = 26,914,167.00
5. Step 5: Solve for x
   x = 26,914,167.00/5,196.24
6. Step 6: Final answer
   x = 5,179.55