Finding the Fourth Proportional to 79,164.73, 109,247.49 and 42,866.57

Step by Step Solution

1. Step 1: Write the proportion equation
   79,164.73 : 109,247.49 = 42,866.57 : x
2. Step 2: Convert to fraction form
   79,164.73/109,247.49 = 42,866.57/x
3. Step 3: Cross multiply
   79,164.73x = 109,247.49 × 42,866.57
4. Step 4: Simplify right side
   79,164.73x = 4,683,065,450.53
5. Step 5: Solve for x
   x = 4,683,065,450.53/79,164.73
6. Step 6: Final answer
   x = 59,155.96