Finding the Fourth Proportional to 19,910,490.54, 29,871,936.63 and 7,131,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,910,490.54 : 29,871,936.63 = 7,131,105.96 : x
2. Step 2: Convert to fraction form
   19,910,490.54/29,871,936.63 = 7,131,105.96/x
3. Step 3: Cross multiply
   19,910,490.54x = 29,871,936.63 × 7,131,105.96
4. Step 4: Simplify right side
   19,910,490.54x = 213,019,945,338,935.31
5. Step 5: Solve for x
   x = 213,019,945,338,935.31/19,910,490.54
6. Step 6: Final answer
   x = 10,698,879.81