Finding the Fourth Proportional to 3,992,045.50, 5,509,022.79 and 2,181,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992,045.50 : 5,509,022.79 = 2,181,209.50 : x
2. Step 2: Convert to fraction form
   3,992,045.50/5,509,022.79 = 2,181,209.50/x
3. Step 3: Cross multiply
   3,992,045.50x = 5,509,022.79 × 2,181,209.50
4. Step 4: Simplify right side
   3,992,045.50x = 12,016,332,845,264.51
5. Step 5: Solve for x
   x = 12,016,332,845,264.51/3,992,045.50
6. Step 6: Final answer
   x = 3,010,069.11