Finding the Fourth Proportional to 59,790.12, 89,679.25 and 20,346.67

Step by Step Solution

1. Step 1: Write the proportion equation
   59,790.12 : 89,679.25 = 20,346.67 : x
2. Step 2: Convert to fraction form
   59,790.12/89,679.25 = 20,346.67/x
3. Step 3: Cross multiply
   59,790.12x = 89,679.25 × 20,346.67
4. Step 4: Simplify right side
   59,790.12x = 1,824,674,105.60
5. Step 5: Solve for x
   x = 1,824,674,105.60/59,790.12
6. Step 6: Final answer
   x = 30,517.99