Finding the Fourth Proportional to 17,865.72, 24,654.55 and 9,907.97

Step by Step Solution

1. Step 1: Write the proportion equation
   17,865.72 : 24,654.55 = 9,907.97 : x
2. Step 2: Convert to fraction form
   17,865.72/24,654.55 = 9,907.97/x
3. Step 3: Cross multiply
   17,865.72x = 24,654.55 × 9,907.97
4. Step 4: Simplify right side
   17,865.72x = 244,276,541.76
5. Step 5: Solve for x
   x = 244,276,541.76/17,865.72
6. Step 6: Final answer
   x = 13,672.92