Finding the Fourth Proportional to 3,868,898.59, 5,795,780.61 and 3,186,764.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868,898.59 : 5,795,780.61 = 3,186,764.71 : x
2. Step 2: Convert to fraction form
   3,868,898.59/5,795,780.61 = 3,186,764.71/x
3. Step 3: Cross multiply
   3,868,898.59x = 5,795,780.61 × 3,186,764.71
4. Step 4: Simplify right side
   3,868,898.59x = 18,469,789,114,850.27
5. Step 5: Solve for x
   x = 18,469,789,114,850.27/3,868,898.59
6. Step 6: Final answer
   x = 4,773,913.99