Finding the Fourth Proportional to 5,212.69, 7,189.43 and 4,615.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,212.69 : 7,189.43 = 4,615.82 : x
2. Step 2: Convert to fraction form
   5,212.69/7,189.43 = 4,615.82/x
3. Step 3: Cross multiply
   5,212.69x = 7,189.43 × 4,615.82
4. Step 4: Simplify right side
   5,212.69x = 33,185,082.72
5. Step 5: Solve for x
   x = 33,185,082.72/5,212.69
6. Step 6: Final answer
   x = 6,366.21