Finding the Fourth Proportional to 3,855,815.80, 5,749,251.72 and 3,749,880.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,855,815.80 : 5,749,251.72 = 3,749,880.52 : x
2. Step 2: Convert to fraction form
   3,855,815.80/5,749,251.72 = 3,749,880.52/x
3. Step 3: Cross multiply
   3,855,815.80x = 5,749,251.72 × 3,749,880.52
4. Step 4: Simplify right side
   3,855,815.80x = 21,559,007,029,404.49
5. Step 5: Solve for x
   x = 21,559,007,029,404.49/3,855,815.80
6. Step 6: Final answer
   x = 5,591,295.89