Finding the Fourth Proportional to 17,949.52, 24,736.66 and 12,905

Step by Step Solution

1. Step 1: Write the proportion equation
   17,949.52 : 24,736.66 = 12,905 : x
2. Step 2: Convert to fraction form
   17,949.52/24,736.66 = 12,905/x
3. Step 3: Cross multiply
   17,949.52x = 24,736.66 × 12,905
4. Step 4: Simplify right side
   17,949.52x = 319,226,597.30
5. Step 5: Solve for x
   x = 319,226,597.30/17,949.52
6. Step 6: Final answer
   x = 17,784.69