Finding the Fourth Proportional to 12,642,874.33, 17,445,289.71 and 7,678,732.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642,874.33 : 17,445,289.71 = 7,678,732.43 : x
2. Step 2: Convert to fraction form
   12,642,874.33/17,445,289.71 = 7,678,732.43/x
3. Step 3: Cross multiply
   12,642,874.33x = 17,445,289.71 × 7,678,732.43
4. Step 4: Simplify right side
   12,642,874.33x = 133,957,711,846,922.30
5. Step 5: Solve for x
   x = 133,957,711,846,922.30/12,642,874.33
6. Step 6: Final answer
   x = 10,595,510.83