Finding the Fourth Proportional to 9,016.76, 12,446.60 and 8,070.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.76 : 12,446.60 = 8,070.88 : x
2. Step 2: Convert to fraction form
   9,016.76/12,446.60 = 8,070.88/x
3. Step 3: Cross multiply
   9,016.76x = 12,446.60 × 8,070.88
4. Step 4: Simplify right side
   9,016.76x = 100,455,015.01
5. Step 5: Solve for x
   x = 100,455,015.01/9,016.76
6. Step 6: Final answer
   x = 11,140.92