Finding the Fourth Proportional to 8,279,890.10, 12,396,215.55 and 7,335,106.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,279,890.10 : 12,396,215.55 = 7,335,106.10 : x
2. Step 2: Convert to fraction form
   8,279,890.10/12,396,215.55 = 7,335,106.10/x
3. Step 3: Cross multiply
   8,279,890.10x = 12,396,215.55 × 7,335,106.10
4. Step 4: Simplify right side
   8,279,890.10x = 90,927,556,297,719.86
5. Step 5: Solve for x
   x = 90,927,556,297,719.86/8,279,890.10
6. Step 6: Final answer
   x = 10,981,734.68