Finding the Fourth Proportional to 23,118.45, 31,903.41 and 12,508.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.45 : 31,903.41 = 12,508.08 : x
2. Step 2: Convert to fraction form
   23,118.45/31,903.41 = 12,508.08/x
3. Step 3: Cross multiply
   23,118.45x = 31,903.41 × 12,508.08
4. Step 4: Simplify right side
   23,118.45x = 399,050,404.55
5. Step 5: Solve for x
   x = 399,050,404.55/23,118.45
6. Step 6: Final answer
   x = 17,261.12