Finding the Fourth Proportional to 12,726,805, 17,562,993.78 and 7,003,669

Step by Step Solution

1. Step 1: Write the proportion equation
   12,726,805 : 17,562,993.78 = 7,003,669 : x
2. Step 2: Convert to fraction form
   12,726,805/17,562,993.78 = 7,003,669/x
3. Step 3: Cross multiply
   12,726,805x = 17,562,993.78 × 7,003,669
4. Step 4: Simplify right side
   12,726,805x = 123,005,395,084,178.83
5. Step 5: Solve for x
   x = 123,005,395,084,178.83/12,726,805
6. Step 6: Final answer
   x = 9,665,064.80