Finding the Fourth Proportional to 111,764.98, 154,234.80 and 60,777.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,764.98 : 154,234.80 = 60,777.72 : x
2. Step 2: Convert to fraction form
   111,764.98/154,234.80 = 60,777.72/x
3. Step 3: Cross multiply
   111,764.98x = 154,234.80 × 60,777.72
4. Step 4: Simplify right side
   111,764.98x = 9,374,039,488.66
5. Step 5: Solve for x
   x = 9,374,039,488.66/111,764.98
6. Step 6: Final answer
   x = 83,872.78