Finding the Fourth Proportional to 23,156.34, 31,955.69 and 12,546.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,156.34 : 31,955.69 = 12,546.15 : x
2. Step 2: Convert to fraction form
   23,156.34/31,955.69 = 12,546.15/x
3. Step 3: Cross multiply
   23,156.34x = 31,955.69 × 12,546.15
4. Step 4: Simplify right side
   23,156.34x = 400,920,817.36
5. Step 5: Solve for x
   x = 400,920,817.36/23,156.34
6. Step 6: Final answer
   x = 17,313.65