Finding the Fourth Proportional to 59,604.76, 89,485.32 and 39,971.20

Step by Step Solution

1. Step 1: Write the proportion equation
   59,604.76 : 89,485.32 = 39,971.20 : x
2. Step 2: Convert to fraction form
   59,604.76/89,485.32 = 39,971.20/x
3. Step 3: Cross multiply
   59,604.76x = 89,485.32 × 39,971.20
4. Step 4: Simplify right side
   59,604.76x = 3,576,835,622.78
5. Step 5: Solve for x
   x = 3,576,835,622.78/59,604.76
6. Step 6: Final answer
   x = 60,009.23