Finding the Fourth Proportional to 49,231,644.72, 73,850,616.22 and 18,939,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,231,644.72 : 73,850,616.22 = 18,939,507.72 : x
2. Step 2: Convert to fraction form
   49,231,644.72/73,850,616.22 = 18,939,507.72/x
3. Step 3: Cross multiply
   49,231,644.72x = 73,850,616.22 × 18,939,507.72
4. Step 4: Simplify right side
   49,231,644.72x = 1,398,694,316,025,447
5. Step 5: Solve for x
   x = 1,398,694,316,025,447/49,231,644.72
6. Step 6: Final answer
   x = 28,410,473.06