Finding the Fourth Proportional to 55,085.80, 76,018.88 and 29,935.30

Step by Step Solution

1. Step 1: Write the proportion equation
   55,085.80 : 76,018.88 = 29,935.30 : x
2. Step 2: Convert to fraction form
   55,085.80/76,018.88 = 29,935.30/x
3. Step 3: Cross multiply
   55,085.80x = 76,018.88 × 29,935.30
4. Step 4: Simplify right side
   55,085.80x = 2,275,647,978.46
5. Step 5: Solve for x
   x = 2,275,647,978.46/55,085.80
6. Step 6: Final answer
   x = 41,310.97