Finding the Fourth Proportional to 81,985.30, 123,035.55 and 35,271.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,985.30 : 123,035.55 = 35,271.70 : x
2. Step 2: Convert to fraction form
   81,985.30/123,035.55 = 35,271.70/x
3. Step 3: Cross multiply
   81,985.30x = 123,035.55 × 35,271.70
4. Step 4: Simplify right side
   81,985.30x = 4,339,673,008.94
5. Step 5: Solve for x
   x = 4,339,673,008.94/81,985.30
6. Step 6: Final answer
   x = 52,932.33