Finding the Fourth Proportional to 261,179,763.72, 391,339,175.49 and 151,697,603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   261,179,763.72 : 391,339,175.49 = 151,697,603.31 : x
2. Step 2: Convert to fraction form
   261,179,763.72/391,339,175.49 = 151,697,603.31/x
3. Step 3: Cross multiply
   261,179,763.72x = 391,339,175.49 × 151,697,603.31
4. Step 4: Simplify right side
   261,179,763.72x = 59,365,215,003,144,496
5. Step 5: Solve for x
   x = 59,365,215,003,144,496/261,179,763.72
6. Step 6: Final answer
   x = 227,296,380.69