Finding the Fourth Proportional to 23,178.29, 31,985.96 and 12,567.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,178.29 : 31,985.96 = 12,567.89 : x
2. Step 2: Convert to fraction form
   23,178.29/31,985.96 = 12,567.89/x
3. Step 3: Cross multiply
   23,178.29x = 31,985.96 × 12,567.89
4. Step 4: Simplify right side
   23,178.29x = 401,996,043.95
5. Step 5: Solve for x
   x = 401,996,043.95/23,178.29
6. Step 6: Final answer
   x = 17,343.65