Finding the Fourth Proportional to 16,943.89, 23,404.86 and 13,013.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,943.89 : 23,404.86 = 13,013.57 : x
2. Step 2: Convert to fraction form
   16,943.89/23,404.86 = 13,013.57/x
3. Step 3: Cross multiply
   16,943.89x = 23,404.86 × 13,013.57
4. Step 4: Simplify right side
   16,943.89x = 304,580,783.95
5. Step 5: Solve for x
   x = 304,580,783.95/16,943.89
6. Step 6: Final answer
   x = 17,975.85