Finding the Fourth Proportional to 23,477.70, 35,218.72 and 8,488.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,477.70 : 35,218.72 = 8,488.57 : x
2. Step 2: Convert to fraction form
   23,477.70/35,218.72 = 8,488.57/x
3. Step 3: Cross multiply
   23,477.70x = 35,218.72 × 8,488.57
4. Step 4: Simplify right side
   23,477.70x = 298,956,570.03
5. Step 5: Solve for x
   x = 298,956,570.03/23,477.70
6. Step 6: Final answer
   x = 12,733.64