Finding the Fourth Proportional to 7,059.15, 10,590.40 and 2,128.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,059.15 : 10,590.40 = 2,128.83 : x
2. Step 2: Convert to fraction form
   7,059.15/10,590.40 = 2,128.83/x
3. Step 3: Cross multiply
   7,059.15x = 10,590.40 × 2,128.83
4. Step 4: Simplify right side
   7,059.15x = 22,545,171.78
5. Step 5: Solve for x
   x = 22,545,171.78/7,059.15
6. Step 6: Final answer
   x = 3,193.75