Finding the Fourth Proportional to 3,878,612.72, 5,809,987.56 and 3,161,510

Step by Step Solution

1. Step 1: Write the proportion equation
   3,878,612.72 : 5,809,987.56 = 3,161,510 : x
2. Step 2: Convert to fraction form
   3,878,612.72/5,809,987.56 = 3,161,510/x
3. Step 3: Cross multiply
   3,878,612.72x = 5,809,987.56 × 3,161,510
4. Step 4: Simplify right side
   3,878,612.72x = 18,368,333,770,815.60
5. Step 5: Solve for x
   x = 18,368,333,770,815.60/3,878,612.72
6. Step 6: Final answer
   x = 4,735,799.91