Finding the Fourth Proportional to 80,610.59, 120,964.49 and 28,056.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,610.59 : 120,964.49 = 28,056.98 : x
2. Step 2: Convert to fraction form
   80,610.59/120,964.49 = 28,056.98/x
3. Step 3: Cross multiply
   80,610.59x = 120,964.49 × 28,056.98
4. Step 4: Simplify right side
   80,610.59x = 3,393,897,531.53
5. Step 5: Solve for x
   x = 3,393,897,531.53/80,610.59
6. Step 6: Final answer
   x = 42,102.38