Finding the Fourth Proportional to 55,308.56, 76,327.62 and 31,113.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,308.56 : 76,327.62 = 31,113.72 : x
2. Step 2: Convert to fraction form
   55,308.56/76,327.62 = 31,113.72/x
3. Step 3: Cross multiply
   55,308.56x = 76,327.62 × 31,113.72
4. Step 4: Simplify right side
   55,308.56x = 2,374,836,196.95
5. Step 5: Solve for x
   x = 2,374,836,196.95/55,308.56
6. Step 6: Final answer
   x = 42,937.95