Finding the Fourth Proportional to 9,389,639.82, 12,958,847.19 and 5,521,974.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,389,639.82 : 12,958,847.19 = 5,521,974.06 : x
2. Step 2: Convert to fraction form
   9,389,639.82/12,958,847.19 = 5,521,974.06/x
3. Step 3: Cross multiply
   9,389,639.82x = 12,958,847.19 × 5,521,974.06
4. Step 4: Simplify right side
   9,389,639.82x = 71,558,418,030,683.89
5. Step 5: Solve for x
   x = 71,558,418,030,683.89/9,389,639.82
6. Step 6: Final answer
   x = 7,620,997.12