Finding the Fourth Proportional to 3,878,606.72, 5,809,978.56 and 3,161,504

Step by Step Solution

1. Step 1: Write the proportion equation
   3,878,606.72 : 5,809,978.56 = 3,161,504 : x
2. Step 2: Convert to fraction form
   3,878,606.72/5,809,978.56 = 3,161,504/x
3. Step 3: Cross multiply
   3,878,606.72x = 5,809,978.56 × 3,161,504
4. Step 4: Simplify right side
   3,878,606.72x = 18,368,270,457,354.24
5. Step 5: Solve for x
   x = 18,368,270,457,354.24/3,878,606.72
6. Step 6: Final answer
   x = 4,735,790.91