Finding the Fourth Proportional to 19,514.50, 26,941.62 and 12,811.86

Step by Step Solution

1. Step 1: Write the proportion equation
   19,514.50 : 26,941.62 = 12,811.86 : x
2. Step 2: Convert to fraction form
   19,514.50/26,941.62 = 12,811.86/x
3. Step 3: Cross multiply
   19,514.50x = 26,941.62 × 12,811.86
4. Step 4: Simplify right side
   19,514.50x = 345,172,263.61
5. Step 5: Solve for x
   x = 345,172,263.61/19,514.50
6. Step 6: Final answer
   x = 17,687.99