Finding the Fourth Proportional to 7,290.57, 10,059.87 and 4,146.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,290.57 : 10,059.87 = 4,146.69 : x
2. Step 2: Convert to fraction form
   7,290.57/10,059.87 = 4,146.69/x
3. Step 3: Cross multiply
   7,290.57x = 10,059.87 × 4,146.69
4. Step 4: Simplify right side
   7,290.57x = 41,715,162.33
5. Step 5: Solve for x
   x = 41,715,162.33/7,290.57
6. Step 6: Final answer
   x = 5,721.80