Finding the Fourth Proportional to 3,965,706.42, 5,472,709.47 and 2,154,870.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965,706.42 : 5,472,709.47 = 2,154,870.42 : x
2. Step 2: Convert to fraction form
   3,965,706.42/5,472,709.47 = 2,154,870.42/x
3. Step 3: Cross multiply
   3,965,706.42x = 5,472,709.47 × 2,154,870.42
4. Step 4: Simplify right side
   3,965,706.42x = 11,792,979,754,156.88
5. Step 5: Solve for x
   x = 11,792,979,754,156.88/3,965,706.42
6. Step 6: Final answer
   x = 2,973,739.99