Finding the Fourth Proportional to 57,259.73, 79,019.25 and 42,894.11

Step by Step Solution

1. Step 1: Write the proportion equation
   57,259.73 : 79,019.25 = 42,894.11 : x
2. Step 2: Convert to fraction form
   57,259.73/79,019.25 = 42,894.11/x
3. Step 3: Cross multiply
   57,259.73x = 79,019.25 × 42,894.11
4. Step 4: Simplify right side
   57,259.73x = 3,389,460,401.62
5. Step 5: Solve for x
   x = 3,389,460,401.62/57,259.73
6. Step 6: Final answer
   x = 59,194.49