Finding the Fourth Proportional to 57,665.50, 86,498.34 and 16,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,665.50 : 86,498.34 = 16,112.50 : x
2. Step 2: Convert to fraction form
   57,665.50/86,498.34 = 16,112.50/x
3. Step 3: Cross multiply
   57,665.50x = 86,498.34 × 16,112.50
4. Step 4: Simplify right side
   57,665.50x = 1,393,704,503.25
5. Step 5: Solve for x
   x = 1,393,704,503.25/57,665.50
6. Step 6: Final answer
   x = 24,168.78