Finding the Fourth Proportional to 59,908.68, 82,074.78 and 57,665.52

Step by Step Solution

1. Step 1: Write the proportion equation
   59,908.68 : 82,074.78 = 57,665.52 : x
2. Step 2: Convert to fraction form
   59,908.68/82,074.78 = 57,665.52/x
3. Step 3: Cross multiply
   59,908.68x = 82,074.78 × 57,665.52
4. Step 4: Simplify right side
   59,908.68x = 4,732,884,867.59
5. Step 5: Solve for x
   x = 4,732,884,867.59/59,908.68
6. Step 6: Final answer
   x = 79,001.65