Finding the Fourth Proportional to 20,491,456.10, 30,772,613.55 and 10,925,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   20,491,456.10 : 30,772,613.55 = 10,925,518.10 : x
2. Step 2: Convert to fraction form
   20,491,456.10/30,772,613.55 = 10,925,518.10/x
3. Step 3: Cross multiply
   20,491,456.10x = 30,772,613.55 × 10,925,518.10
4. Step 4: Simplify right side
   20,491,456.10x = 336,206,746,324,830.25
5. Step 5: Solve for x
   x = 336,206,746,324,830.25/20,491,456.10
6. Step 6: Final answer
   x = 16,407,167.20