Finding the Fourth Proportional to 78,579.27, 108,441.71 and 42,771.60

Step by Step Solution

1. Step 1: Write the proportion equation
   78,579.27 : 108,441.71 = 42,771.60 : x
2. Step 2: Convert to fraction form
   78,579.27/108,441.71 = 42,771.60/x
3. Step 3: Cross multiply
   78,579.27x = 108,441.71 × 42,771.60
4. Step 4: Simplify right side
   78,579.27x = 4,638,225,443.44
5. Step 5: Solve for x
   x = 4,638,225,443.44/78,579.27
6. Step 6: Final answer
   x = 59,026.07