Finding the Fourth Proportional to 72,884.76, 109,257.42 and 28,496.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,884.76 : 109,257.42 = 28,496.76 : x
2. Step 2: Convert to fraction form
   72,884.76/109,257.42 = 28,496.76/x
3. Step 3: Cross multiply
   72,884.76x = 109,257.42 × 28,496.76
4. Step 4: Simplify right side
   72,884.76x = 3,113,482,475.96
5. Step 5: Solve for x
   x = 3,113,482,475.96/72,884.76
6. Step 6: Final answer
   x = 42,717.88