Finding the Fourth Proportional to 3,359.42, 5,030.75 and 2,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,359.42 : 5,030.75 = 2,123.10 : x
2. Step 2: Convert to fraction form
   3,359.42/5,030.75 = 2,123.10/x
3. Step 3: Cross multiply
   3,359.42x = 5,030.75 × 2,123.10
4. Step 4: Simplify right side
   3,359.42x = 10,680,785.33
5. Step 5: Solve for x
   x = 10,680,785.33/3,359.42
6. Step 6: Final answer
   x = 3,179.35