Finding the Fourth Proportional to 21,920,986.46, 30,251,018.76 and 12,132,105.68

Step by Step Solution

1. Step 1: Write the proportion equation
   21,920,986.46 : 30,251,018.76 = 12,132,105.68 : x
2. Step 2: Convert to fraction form
   21,920,986.46/30,251,018.76 = 12,132,105.68/x
3. Step 3: Cross multiply
   21,920,986.46x = 30,251,018.76 × 12,132,105.68
4. Step 4: Simplify right side
   21,920,986.46x = 367,008,556,523,982.56
5. Step 5: Solve for x
   x = 367,008,556,523,982.56/21,920,986.46
6. Step 6: Final answer
   x = 16,742,337.63