Finding the Fourth Proportional to 309,303,903.69, 426,854,709.83 and 191,867,072.07

Step by Step Solution

1. Step 1: Write the proportion equation
   309,303,903.69 : 426,854,709.83 = 191,867,072.07 : x
2. Step 2: Convert to fraction form
   309,303,903.69/426,854,709.83 = 191,867,072.07/x
3. Step 3: Cross multiply
   309,303,903.69x = 426,854,709.83 × 191,867,072.07
4. Step 4: Simplify right side
   309,303,903.69x = 81,899,363,373,412,208
5. Step 5: Solve for x
   x = 81,899,363,373,412,208/309,303,903.69
6. Step 6: Final answer
   x = 264,786,064.44