Finding the Fourth Proportional to 21,723,451.33, 29,978,669.88 and 11,934,800.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,723,451.33 : 29,978,669.88 = 11,934,800.18 : x
2. Step 2: Convert to fraction form
   21,723,451.33/29,978,669.88 = 11,934,800.18/x
3. Step 3: Cross multiply
   21,723,451.33x = 29,978,669.88 × 11,934,800.18
4. Step 4: Simplify right side
   21,723,451.33x = 357,789,434,679,984.56
5. Step 5: Solve for x
   x = 357,789,434,679,984.56/21,723,451.33
6. Step 6: Final answer
   x = 16,470,192.94