Finding the Fourth Proportional to 3,648,918.69, 5,036,307.17 and 2,121,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648,918.69 : 5,036,307.17 = 2,121,906.69 : x
2. Step 2: Convert to fraction form
   3,648,918.69/5,036,307.17 = 2,121,906.69/x
3. Step 3: Cross multiply
   3,648,918.69x = 5,036,307.17 × 2,121,906.69
4. Step 4: Simplify right side
   3,648,918.69x = 10,686,573,866,308.43
5. Step 5: Solve for x
   x = 10,686,573,866,308.43/3,648,918.69
6. Step 6: Final answer
   x = 2,928,696.08