Finding the Fourth Proportional to 12,146.14, 16,772.23 and 9,341.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146.14 : 16,772.23 = 9,341.31 : x
2. Step 2: Convert to fraction form
   12,146.14/16,772.23 = 9,341.31/x
3. Step 3: Cross multiply
   12,146.14x = 16,772.23 × 9,341.31
4. Step 4: Simplify right side
   12,146.14x = 156,674,599.82
5. Step 5: Solve for x
   x = 156,674,599.82/12,146.14
6. Step 6: Final answer
   x = 12,899.13