Finding the Fourth Proportional to 3,342.49, 5,018.37 and 2,106.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,342.49 : 5,018.37 = 2,106.25 : x
2. Step 2: Convert to fraction form
   3,342.49/5,018.37 = 2,106.25/x
3. Step 3: Cross multiply
   3,342.49x = 5,018.37 × 2,106.25
4. Step 4: Simplify right side
   3,342.49x = 10,569,941.81
5. Step 5: Solve for x
   x = 10,569,941.81/3,342.49
6. Step 6: Final answer
   x = 3,162.30