Finding the Fourth Proportional to 123,721.34, 185,544.99 and 64,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,721.34 : 185,544.99 = 64,524.72 : x
2. Step 2: Convert to fraction form
   123,721.34/185,544.99 = 64,524.72/x
3. Step 3: Cross multiply
   123,721.34x = 185,544.99 × 64,524.72
4. Step 4: Simplify right side
   123,721.34x = 11,972,238,527.15
5. Step 5: Solve for x
   x = 11,972,238,527.15/123,721.34
6. Step 6: Final answer
   x = 96,767.78