Finding the Fourth Proportional to 59,146.69, 81,602.89 and 39,013.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,146.69 : 81,602.89 = 39,013.60 : x
2. Step 2: Convert to fraction form
   59,146.69/81,602.89 = 39,013.60/x
3. Step 3: Cross multiply
   59,146.69x = 81,602.89 × 39,013.60
4. Step 4: Simplify right side
   59,146.69x = 3,183,622,509.30
5. Step 5: Solve for x
   x = 3,183,622,509.30/59,146.69
6. Step 6: Final answer
   x = 53,825.88