Finding the Fourth Proportional to 19,503, 26,914.50 and 13,923.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,503 : 26,914.50 = 13,923.72 : x
2. Step 2: Convert to fraction form
   19,503/26,914.50 = 13,923.72/x
3. Step 3: Cross multiply
   19,503x = 26,914.50 × 13,923.72
4. Step 4: Simplify right side
   19,503x = 374,749,961.94
5. Step 5: Solve for x
   x = 374,749,961.94/19,503
6. Step 6: Final answer
   x = 19,214.99