Finding the Fourth Proportional to 21,936,915.27, 30,272,924.34 and 12,147,359.40

Step by Step Solution

1. Step 1: Write the proportion equation
   21,936,915.27 : 30,272,924.34 = 12,147,359.40 : x
2. Step 2: Convert to fraction form
   21,936,915.27/30,272,924.34 = 12,147,359.40/x
3. Step 3: Cross multiply
   21,936,915.27x = 30,272,924.34 × 12,147,359.40
4. Step 4: Simplify right side
   21,936,915.27x = 367,736,092,046,987.81
5. Step 5: Solve for x
   x = 367,736,092,046,987.81/21,936,915.27
6. Step 6: Final answer
   x = 16,763,345.60