Finding the Fourth Proportional to 21,076,574.72, 29,085,701.76 and 11,418,782.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,076,574.72 : 29,085,701.76 = 11,418,782.72 : x
2. Step 2: Convert to fraction form
   21,076,574.72/29,085,701.76 = 11,418,782.72/x
3. Step 3: Cross multiply
   21,076,574.72x = 29,085,701.76 × 11,418,782.72
4. Step 4: Simplify right side
   21,076,574.72x = 332,123,308,656,161.62
5. Step 5: Solve for x
   x = 332,123,308,656,161.62/21,076,574.72
6. Step 6: Final answer
   x = 15,757,935.67