Finding the Fourth Proportional to 21,315,250.56, 29,413,267.56 and 12,022,308.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,315,250.56 : 29,413,267.56 = 12,022,308.48 : x
2. Step 2: Convert to fraction form
   21,315,250.56/29,413,267.56 = 12,022,308.48/x
3. Step 3: Cross multiply
   21,315,250.56x = 29,413,267.56 × 12,022,308.48
4. Step 4: Simplify right side
   21,315,250.56x = 353,615,376,011,096.88
5. Step 5: Solve for x
   x = 353,615,376,011,096.88/21,315,250.56
6. Step 6: Final answer
   x = 16,589,782.75