Finding the Fourth Proportional to 85,452.62, 128,141.95 and 35,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,452.62 : 128,141.95 = 35,498.50 : x
2. Step 2: Convert to fraction form
   85,452.62/128,141.95 = 35,498.50/x
3. Step 3: Cross multiply
   85,452.62x = 128,141.95 × 35,498.50
4. Step 4: Simplify right side
   85,452.62x = 4,548,847,390.33
5. Step 5: Solve for x
   x = 4,548,847,390.33/85,452.62
6. Step 6: Final answer
   x = 53,232.39