Finding the Fourth Proportional to 9,093.12, 12,570.87 and 9,009.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,093.12 : 12,570.87 = 9,009.96 : x
2. Step 2: Convert to fraction form
   9,093.12/12,570.87 = 9,009.96/x
3. Step 3: Cross multiply
   9,093.12x = 12,570.87 × 9,009.96
4. Step 4: Simplify right side
   9,093.12x = 113,262,990.82
5. Step 5: Solve for x
   x = 113,262,990.82/9,093.12
6. Step 6: Final answer
   x = 12,455.90