Finding the Fourth Proportional to 56,500.28, 84,689.94 and 35,729.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,500.28 : 84,689.94 = 35,729.72 : x
2. Step 2: Convert to fraction form
   56,500.28/84,689.94 = 35,729.72/x
3. Step 3: Cross multiply
   56,500.28x = 84,689.94 × 35,729.72
4. Step 4: Simplify right side
   56,500.28x = 3,025,947,843.02
5. Step 5: Solve for x
   x = 3,025,947,843.02/56,500.28
6. Step 6: Final answer
   x = 53,556.33