Finding the Fourth Proportional to 120,296,196.65, 166,008,874.24 and 65,292,064.49

Step by Step Solution

1. Step 1: Write the proportion equation
   120,296,196.65 : 166,008,874.24 = 65,292,064.49 : x
2. Step 2: Convert to fraction form
   120,296,196.65/166,008,874.24 = 65,292,064.49/x
3. Step 3: Cross multiply
   120,296,196.65x = 166,008,874.24 × 65,292,064.49
4. Step 4: Simplify right side
   120,296,196.65x = 10,839,062,123,287,018
5. Step 5: Solve for x
   x = 10,839,062,123,287,018/120,296,196.65
6. Step 6: Final answer
   x = 90,103,115.68