Finding the Fourth Proportional to 2,940.41, 4,056.32 and 2,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.41 : 4,056.32 = 2,142.50 : x
2. Step 2: Convert to fraction form
   2,940.41/4,056.32 = 2,142.50/x
3. Step 3: Cross multiply
   2,940.41x = 4,056.32 × 2,142.50
4. Step 4: Simplify right side
   2,940.41x = 8,690,645.32
5. Step 5: Solve for x
   x = 8,690,645.32/2,940.41
6. Step 6: Final answer
   x = 2,955.59