Finding the Fourth Proportional to 5,160.39, 7,123.16 and 3,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,160.39 : 7,123.16 = 3,064.50 : x
2. Step 2: Convert to fraction form
   5,160.39/7,123.16 = 3,064.50/x
3. Step 3: Cross multiply
   5,160.39x = 7,123.16 × 3,064.50
4. Step 4: Simplify right side
   5,160.39x = 21,828,908.50
5. Step 5: Solve for x
   x = 21,828,908.50/5,160.39
6. Step 6: Final answer
   x = 4,230.09