Finding the Fourth Proportional to 23,179.82, 31,988.17 and 12,569.45

Step by Step Solution

1. Step 1: Write the proportion equation
   23,179.82 : 31,988.17 = 12,569.45 : x
2. Step 2: Convert to fraction form
   23,179.82/31,988.17 = 12,569.45/x
3. Step 3: Cross multiply
   23,179.82x = 31,988.17 × 12,569.45
4. Step 4: Simplify right side
   23,179.82x = 402,073,758.37
5. Step 5: Solve for x
   x = 402,073,758.37/23,179.82
6. Step 6: Final answer
   x = 17,345.85