Finding the Fourth Proportional to 8,215,404.30, 12,323,106.45 and 8,215,404.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215,404.30 : 12,323,106.45 = 8,215,404.30 : x
2. Step 2: Convert to fraction form
   8,215,404.30/12,323,106.45 = 8,215,404.30/x
3. Step 3: Cross multiply
   8,215,404.30x = 12,323,106.45 × 8,215,404.30
4. Step 4: Simplify right side
   8,215,404.30x = 101,239,301,718,687.73
5. Step 5: Solve for x
   x = 101,239,301,718,687.73/8,215,404.30
6. Step 6: Final answer
   x = 12,323,106.45