Finding the Fourth Proportional to 23,756,793.21, 32,784,374.61 and 12,891,777.21

Step by Step Solution

1. Step 1: Write the proportion equation
   23,756,793.21 : 32,784,374.61 = 12,891,777.21 : x
2. Step 2: Convert to fraction form
   23,756,793.21/32,784,374.61 = 12,891,777.21/x
3. Step 3: Cross multiply
   23,756,793.21x = 32,784,374.61 × 12,891,777.21
4. Step 4: Simplify right side
   23,756,793.21x = 422,648,853,441,300.69
5. Step 5: Solve for x
   x = 422,648,853,441,300.69/23,756,793.21
6. Step 6: Final answer
   x = 17,790,652.54