Finding the Fourth Proportional to 5,225.31, 7,200.09 and 4,864.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,225.31 : 7,200.09 = 4,864.05 : x
2. Step 2: Convert to fraction form
   5,225.31/7,200.09 = 4,864.05/x
3. Step 3: Cross multiply
   5,225.31x = 7,200.09 × 4,864.05
4. Step 4: Simplify right side
   5,225.31x = 35,021,597.76
5. Step 5: Solve for x
   x = 35,021,597.76/5,225.31
6. Step 6: Final answer
   x = 6,702.30