Finding the Fourth Proportional to 59,142.69, 81,597.38 and 39,009.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,142.69 : 81,597.38 = 39,009.60 : x
2. Step 2: Convert to fraction form
   59,142.69/81,597.38 = 39,009.60/x
3. Step 3: Cross multiply
   59,142.69x = 81,597.38 × 39,009.60
4. Step 4: Simplify right side
   59,142.69x = 3,183,080,959.80
5. Step 5: Solve for x
   x = 3,183,080,959.80/59,142.69
6. Step 6: Final answer
   x = 53,820.36