Finding the Fourth Proportional to 85,559.22, 128,360.69 and 35,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,559.22 : 128,360.69 = 35,622.72 : x
2. Step 2: Convert to fraction form
   85,559.22/128,360.69 = 35,622.72/x
3. Step 3: Cross multiply
   85,559.22x = 128,360.69 × 35,622.72
4. Step 4: Simplify right side
   85,559.22x = 4,572,556,918.88
5. Step 5: Solve for x
   x = 4,572,556,918.88/85,559.22
6. Step 6: Final answer
   x = 53,443.18