Finding the Fourth Proportional to 3,910,667.31, 5,396,639.18 and 2,144,540.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,667.31 : 5,396,639.18 = 2,144,540.07 : x
2. Step 2: Convert to fraction form
   3,910,667.31/5,396,639.18 = 2,144,540.07/x
3. Step 3: Cross multiply
   3,910,667.31x = 5,396,639.18 × 2,144,540.07
4. Step 4: Simplify right side
   3,910,667.31x = 11,573,308,954,119.24
5. Step 5: Solve for x
   x = 11,573,308,954,119.24/3,910,667.31
6. Step 6: Final answer
   x = 2,959,420.49