Finding the Fourth Proportional to 55,147.83, 76,103.98 and 31,274.49

Step by Step Solution

1. Step 1: Write the proportion equation
   55,147.83 : 76,103.98 = 31,274.49 : x
2. Step 2: Convert to fraction form
   55,147.83/76,103.98 = 31,274.49/x
3. Step 3: Cross multiply
   55,147.83x = 76,103.98 × 31,274.49
4. Step 4: Simplify right side
   55,147.83x = 2,380,113,161.47
5. Step 5: Solve for x
   x = 2,380,113,161.47/55,147.83
6. Step 6: Final answer
   x = 43,158.78