Finding the Fourth Proportional to 85,568.47, 128,283.27 and 35,685.97

Step by Step Solution

1. Step 1: Write the proportion equation
   85,568.47 : 128,283.27 = 35,685.97 : x
2. Step 2: Convert to fraction form
   85,568.47/128,283.27 = 35,685.97/x
3. Step 3: Cross multiply
   85,568.47x = 128,283.27 × 35,685.97
4. Step 4: Simplify right side
   85,568.47x = 4,577,912,924.72
5. Step 5: Solve for x
   x = 4,577,912,924.72/85,568.47
6. Step 6: Final answer
   x = 53,500.00