Finding the Fourth Proportional to 19,821,162.73, 29,728,200.69 and 12,611,279.83

Step by Step Solution

1. Step 1: Write the proportion equation
   19,821,162.73 : 29,728,200.69 = 12,611,279.83 : x
2. Step 2: Convert to fraction form
   19,821,162.73/29,728,200.69 = 12,611,279.83/x
3. Step 3: Cross multiply
   19,821,162.73x = 29,728,200.69 × 12,611,279.83
4. Step 4: Simplify right side
   19,821,162.73x = 374,910,657,743,989.12
5. Step 5: Solve for x
   x = 374,910,657,743,989.12/19,821,162.73
6. Step 6: Final answer
   x = 18,914,665.24