Finding the Fourth Proportional to 21,297,139.50, 31,932,922.59 and 9,768,164.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,297,139.50 : 31,932,922.59 = 9,768,164.88 : x
2. Step 2: Convert to fraction form
   21,297,139.50/31,932,922.59 = 9,768,164.88/x
3. Step 3: Cross multiply
   21,297,139.50x = 31,932,922.59 × 9,768,164.88
4. Step 4: Simplify right side
   21,297,139.50x = 311,926,052,959,396.69
5. Step 5: Solve for x
   x = 311,926,052,959,396.69/21,297,139.50
6. Step 6: Final answer
   x = 14,646,382.58