Finding the Fourth Proportional to 16,315.32, 22,514.86 and 9,145.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,315.32 : 22,514.86 = 9,145.46 : x
2. Step 2: Convert to fraction form
   16,315.32/22,514.86 = 9,145.46/x
3. Step 3: Cross multiply
   16,315.32x = 22,514.86 × 9,145.46
4. Step 4: Simplify right side
   16,315.32x = 205,908,692.61
5. Step 5: Solve for x
   x = 205,908,692.61/16,315.32
6. Step 6: Final answer
   x = 12,620.57