Finding the Fourth Proportional to 315,103,616.10, 471,805,118.55 and 315,103,616.10

Step by Step Solution

1. Step 1: Write the proportion equation
   315,103,616.10 : 471,805,118.55 = 315,103,616.10 : x
2. Step 2: Convert to fraction form
   315,103,616.10/471,805,118.55 = 315,103,616.10/x
3. Step 3: Cross multiply
   315,103,616.10x = 471,805,118.55 × 315,103,616.10
4. Step 4: Simplify right side
   315,103,616.10x = 148,667,498,949,594,208
5. Step 5: Solve for x
   x = 148,667,498,949,594,208/315,103,616.10
6. Step 6: Final answer
   x = 471,805,118.55