Finding the Fourth Proportional to 49,231,649.72, 73,850,623.72 and 18,939,512.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,231,649.72 : 73,850,623.72 = 18,939,512.72 : x
2. Step 2: Convert to fraction form
   49,231,649.72/73,850,623.72 = 18,939,512.72/x
3. Step 3: Cross multiply
   49,231,649.72x = 73,850,623.72 × 18,939,512.72
4. Step 4: Simplify right side
   49,231,649.72x = 1,398,694,827,324,873.50
5. Step 5: Solve for x
   x = 1,398,694,827,324,873.50/49,231,649.72
6. Step 6: Final answer
   x = 28,410,480.56