Finding the Fourth Proportional to 8,981.31, 13,472.73 and 2,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.31 : 13,472.73 = 2,742.72 : x
2. Step 2: Convert to fraction form
   8,981.31/13,472.73 = 2,742.72/x
3. Step 3: Cross multiply
   8,981.31x = 13,472.73 × 2,742.72
4. Step 4: Simplify right side
   8,981.31x = 36,951,926.03
5. Step 5: Solve for x
   x = 36,951,926.03/8,981.31
6. Step 6: Final answer
   x = 4,114.31