Finding the Fourth Proportional to 21,150,722.67, 31,726,193.49 and 9,628,131.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,150,722.67 : 31,726,193.49 = 9,628,131.72 : x
2. Step 2: Convert to fraction form
   21,150,722.67/31,726,193.49 = 9,628,131.72/x
3. Step 3: Cross multiply
   21,150,722.67x = 31,726,193.49 × 9,628,131.72
4. Step 4: Simplify right side
   21,150,722.67x = 305,463,969,895,926.50
5. Step 5: Solve for x
   x = 305,463,969,895,926.50/21,150,722.67
6. Step 6: Final answer
   x = 14,442,247.42