Finding the Fourth Proportional to 3,680,938.81, 5,078,380.80 and 2,131,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680,938.81 : 5,078,380.80 = 2,131,354.72 : x
2. Step 2: Convert to fraction form
   3,680,938.81/5,078,380.80 = 2,131,354.72/x
3. Step 3: Cross multiply
   3,680,938.81x = 5,078,380.80 × 2,131,354.72
4. Step 4: Simplify right side
   3,680,938.81x = 10,823,830,888,037.38
5. Step 5: Solve for x
   x = 10,823,830,888,037.38/3,680,938.81
6. Step 6: Final answer
   x = 2,940,508.24