Finding the Fourth Proportional to 269,139,078.69, 371,412,091.35 and 145,379,810.49

Step by Step Solution

1. Step 1: Write the proportion equation
   269,139,078.69 : 371,412,091.35 = 145,379,810.49 : x
2. Step 2: Convert to fraction form
   269,139,078.69/371,412,091.35 = 145,379,810.49/x
3. Step 3: Cross multiply
   269,139,078.69x = 371,412,091.35 × 145,379,810.49
4. Step 4: Simplify right side
   269,139,078.69x = 53,995,819,454,157,576
5. Step 5: Solve for x
   x = 53,995,819,454,157,576/269,139,078.69
6. Step 6: Final answer
   x = 200,624,226.39