Finding the Fourth Proportional to 3,921,724.92, 5,412,111.80 and 2,179,467.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921,724.92 : 5,412,111.80 = 2,179,467.72 : x
2. Step 2: Convert to fraction form
   3,921,724.92/5,412,111.80 = 2,179,467.72/x
3. Step 3: Cross multiply
   3,921,724.92x = 5,412,111.80 × 2,179,467.72
4. Step 4: Simplify right side
   3,921,724.92x = 11,795,522,965,131.10
5. Step 5: Solve for x
   x = 11,795,522,965,131.10/3,921,724.92
6. Step 6: Final answer
   x = 3,007,738.48