Finding the Fourth Proportional to 3,392,128.71, 4,682,228.58 and 2,171,721.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,392,128.71 : 4,682,228.58 = 2,171,721.22 : x
2. Step 2: Convert to fraction form
   3,392,128.71/4,682,228.58 = 2,171,721.22/x
3. Step 3: Cross multiply
   3,392,128.71x = 4,682,228.58 × 2,171,721.22
4. Step 4: Simplify right side
   3,392,128.71x = 10,168,495,152,370.89
5. Step 5: Solve for x
   x = 10,168,495,152,370.89/3,392,128.71
6. Step 6: Final answer
   x = 2,997,673.74