Finding the Fourth Proportional to 8,942,640.39, 12,342,454.25 and 5,271,339.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942,640.39 : 12,342,454.25 = 5,271,339.69 : x
2. Step 2: Convert to fraction form
   8,942,640.39/12,342,454.25 = 5,271,339.69/x
3. Step 3: Cross multiply
   8,942,640.39x = 12,342,454.25 × 5,271,339.69
4. Step 4: Simplify right side
   8,942,640.39x = 65,061,268,933,677.48
5. Step 5: Solve for x
   x = 65,061,268,933,677.48/8,942,640.39
6. Step 6: Final answer
   x = 7,275,398.10