Finding the Fourth Proportional to 55,455.88, 83,105.18 and 42,917.54

Step by Step Solution

1. Step 1: Write the proportion equation
   55,455.88 : 83,105.18 = 42,917.54 : x
2. Step 2: Convert to fraction form
   55,455.88/83,105.18 = 42,917.54/x
3. Step 3: Cross multiply
   55,455.88x = 83,105.18 × 42,917.54
4. Step 4: Simplify right side
   55,455.88x = 3,566,669,886.86
5. Step 5: Solve for x
   x = 3,566,669,886.86/55,455.88
6. Step 6: Final answer
   x = 64,315.45