Finding the Fourth Proportional to 120,293.42, 180,080.62 and 72,764.66

Step by Step Solution

1. Step 1: Write the proportion equation
   120,293.42 : 180,080.62 = 72,764.66 : x
2. Step 2: Convert to fraction form
   120,293.42/180,080.62 = 72,764.66/x
3. Step 3: Cross multiply
   120,293.42x = 180,080.62 × 72,764.66
4. Step 4: Simplify right side
   120,293.42x = 13,103,505,086.89
5. Step 5: Solve for x
   x = 13,103,505,086.89/120,293.42
6. Step 6: Final answer
   x = 108,929.52