Finding the Fourth Proportional to 7,016,463.71, 9,682,430.38 and 3,918,972.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016,463.71 : 9,682,430.38 = 3,918,972.78 : x
2. Step 2: Convert to fraction form
   7,016,463.71/9,682,430.38 = 3,918,972.78/x
3. Step 3: Cross multiply
   7,016,463.71x = 9,682,430.38 × 3,918,972.78
4. Step 4: Simplify right side
   7,016,463.71x = 37,945,181,093,667.62
5. Step 5: Solve for x
   x = 37,945,181,093,667.62/7,016,463.71
6. Step 6: Final answer
   x = 5,408,020.72