Finding the Fourth Proportional to 20,960,096.80, 31,365,495.60 and 14,540,231.20

Step by Step Solution

1. Step 1: Write the proportion equation
   20,960,096.80 : 31,365,495.60 = 14,540,231.20 : x
2. Step 2: Convert to fraction form
   20,960,096.80/31,365,495.60 = 14,540,231.20/x
3. Step 3: Cross multiply
   20,960,096.80x = 31,365,495.60 × 14,540,231.20
4. Step 4: Simplify right side
   20,960,096.80x = 456,061,557,726,582.69
5. Step 5: Solve for x
   x = 456,061,557,726,582.69/20,960,096.80
6. Step 6: Final answer
   x = 21,758,561.62