Finding the Fourth Proportional to 85,593.46, 128,320.63 and 35,710.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,593.46 : 128,320.63 = 35,710.72 : x
2. Step 2: Convert to fraction form
   85,593.46/128,320.63 = 35,710.72/x
3. Step 3: Cross multiply
   85,593.46x = 128,320.63 × 35,710.72
4. Step 4: Simplify right side
   85,593.46x = 4,582,422,500.32
5. Step 5: Solve for x
   x = 4,582,422,500.32/85,593.46
6. Step 6: Final answer
   x = 53,537.06