Finding the Fourth Proportional to 3,882,123.20, 5,357,086.31 and 2,139,696.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,882,123.20 : 5,357,086.31 = 2,139,696.69 : x
2. Step 2: Convert to fraction form
   3,882,123.20/5,357,086.31 = 2,139,696.69/x
3. Step 3: Cross multiply
   3,882,123.20x = 5,357,086.31 × 2,139,696.69
4. Step 4: Simplify right side
   3,882,123.20x = 11,462,539,834,852.83
5. Step 5: Solve for x
   x = 11,462,539,834,852.83/3,882,123.20
6. Step 6: Final answer
   x = 2,952,647.11