Finding the Fourth Proportional to 3,905,477.97, 5,389,499.41 and 2,186,660.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,905,477.97 : 5,389,499.41 = 2,186,660.00 : x
2. Step 2: Convert to fraction form
   3,905,477.97/5,389,499.41 = 2,186,660.00/x
3. Step 3: Cross multiply
   3,905,477.97x = 5,389,499.41 × 2,186,660.00
4. Step 4: Simplify right side
   3,905,477.97x = 11,785,002,747,456.45
5. Step 5: Solve for x
   x = 11,785,002,747,456.45/3,905,477.97
6. Step 6: Final answer
   x = 3,017,557.09