Finding the Fourth Proportional to 6,419,300.84, 8,853,469.78 and 5,643,272.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419,300.84 : 8,853,469.78 = 5,643,272.42 : x
2. Step 2: Convert to fraction form
   6,419,300.84/8,853,469.78 = 5,643,272.42/x
3. Step 3: Cross multiply
   6,419,300.84x = 8,853,469.78 × 5,643,272.42
4. Step 4: Simplify right side
   6,419,300.84x = 49,962,541,758,293.76
5. Step 5: Solve for x
   x = 49,962,541,758,293.76/6,419,300.84
6. Step 6: Final answer
   x = 7,783,175.00