Finding the Fourth Proportional to 21,945,128.80, 32,936,355.60 and 9,833,231.20

Step by Step Solution

1. Step 1: Write the proportion equation
   21,945,128.80 : 32,936,355.60 = 9,833,231.20 : x
2. Step 2: Convert to fraction form
   21,945,128.80/32,936,355.60 = 9,833,231.20/x
3. Step 3: Cross multiply
   21,945,128.80x = 32,936,355.60 × 9,833,231.20
4. Step 4: Simplify right side
   21,945,128.80x = 323,870,799,500,214.69
5. Step 5: Solve for x
   x = 323,870,799,500,214.69/21,945,128.80
6. Step 6: Final answer
   x = 14,758,209.10