Finding the Fourth Proportional to 22,644,321.48, 31,248,852.60 and 12,854,680.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,644,321.48 : 31,248,852.60 = 12,854,680.20 : x
2. Step 2: Convert to fraction form
   22,644,321.48/31,248,852.60 = 12,854,680.20/x
3. Step 3: Cross multiply
   22,644,321.48x = 31,248,852.60 × 12,854,680.20
4. Step 4: Simplify right side
   22,644,321.48x = 401,694,006,789,938.50
5. Step 5: Solve for x
   x = 401,694,006,789,938.50/22,644,321.48
6. Step 6: Final answer
   x = 17,739,282.10