Finding the Fourth Proportional to 3,689,546.40, 5,091,354.72 and 2,140,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,546.40 : 5,091,354.72 = 2,140,688.10 : x
2. Step 2: Convert to fraction form
   3,689,546.40/5,091,354.72 = 2,140,688.10/x
3. Step 3: Cross multiply
   3,689,546.40x = 5,091,354.72 × 2,140,688.10
4. Step 4: Simplify right side
   3,689,546.40x = 10,899,002,461,982.83
5. Step 5: Solve for x
   x = 10,899,002,461,982.83/3,689,546.40
6. Step 6: Final answer
   x = 2,954,022.33