Finding the Fourth Proportional to 3,859,288, 5,325,818.72 and 2,140,672.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,859,288 : 5,325,818.72 = 2,140,672.96 : x
2. Step 2: Convert to fraction form
   3,859,288/5,325,818.72 = 2,140,672.96/x
3. Step 3: Cross multiply
   3,859,288x = 5,325,818.72 × 2,140,672.96
4. Step 4: Simplify right side
   3,859,288x = 11,400,836,123,765.81
5. Step 5: Solve for x
   x = 11,400,836,123,765.81/3,859,288
6. Step 6: Final answer
   x = 2,954,129.39