Finding the Fourth Proportional to 55,336.10, 82,874.55 and 42,116.90

Step by Step Solution

1. Step 1: Write the proportion equation
   55,336.10 : 82,874.55 = 42,116.90 : x
2. Step 2: Convert to fraction form
   55,336.10/82,874.55 = 42,116.90/x
3. Step 3: Cross multiply
   55,336.10x = 82,874.55 × 42,116.90
4. Step 4: Simplify right side
   55,336.10x = 3,490,419,134.90
5. Step 5: Solve for x
   x = 3,490,419,134.90/55,336.10
6. Step 6: Final answer
   x = 63,076.71