Finding the Fourth Proportional to 21,978,682.20, 32,972,784.12 and 6,624,687.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978,682.20 : 32,972,784.12 = 6,624,687.42 : x
2. Step 2: Convert to fraction form
   21,978,682.20/32,972,784.12 = 6,624,687.42/x
3. Step 3: Cross multiply
   21,978,682.20x = 32,972,784.12 × 6,624,687.42
4. Step 4: Simplify right side
   21,978,682.20x = 218,434,388,162,139.78
5. Step 5: Solve for x
   x = 218,434,388,162,139.78/21,978,682.20
6. Step 6: Final answer
   x = 9,938,466.11