Finding the Fourth Proportional to 3,620,908.17, 5,436,111.69 and 2,428,169.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,620,908.17 : 5,436,111.69 = 2,428,169.40 : x
2. Step 2: Convert to fraction form
   3,620,908.17/5,436,111.69 = 2,428,169.40/x
3. Step 3: Cross multiply
   3,620,908.17x = 5,436,111.69 × 2,428,169.40
4. Step 4: Simplify right side
   3,620,908.17x = 13,199,800,060,640.29
5. Step 5: Solve for x
   x = 13,199,800,060,640.29/3,620,908.17
6. Step 6: Final answer
   x = 3,645,439.06