Finding the Fourth Proportional to 59,657.50, 89,486.79 and 18,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,657.50 : 89,486.79 = 18,104.50 : x
2. Step 2: Convert to fraction form
   59,657.50/89,486.79 = 18,104.50/x
3. Step 3: Cross multiply
   59,657.50x = 89,486.79 × 18,104.50
4. Step 4: Simplify right side
   59,657.50x = 1,620,113,589.56
5. Step 5: Solve for x
   x = 1,620,113,589.56/59,657.50
6. Step 6: Final answer
   x = 27,156.91