Finding the Fourth Proportional to 80,046.32, 110,502.50 and 51,408.72

Step by Step Solution

1. Step 1: Write the proportion equation
   80,046.32 : 110,502.50 = 51,408.72 : x
2. Step 2: Convert to fraction form
   80,046.32/110,502.50 = 51,408.72/x
3. Step 3: Cross multiply
   80,046.32x = 110,502.50 × 51,408.72
4. Step 4: Simplify right side
   80,046.32x = 5,680,791,824.76
5. Step 5: Solve for x
   x = 5,680,791,824.76/80,046.32
6. Step 6: Final answer
   x = 70,968.81