Finding the Fourth Proportional to 21,590.07, 32,327.46 and 12,697.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,590.07 : 32,327.46 = 12,697.98 : x
2. Step 2: Convert to fraction form
   21,590.07/32,327.46 = 12,697.98/x
3. Step 3: Cross multiply
   21,590.07x = 32,327.46 × 12,697.98
4. Step 4: Simplify right side
   21,590.07x = 410,493,440.53
5. Step 5: Solve for x
   x = 410,493,440.53/21,590.07
6. Step 6: Final answer
   x = 19,013.07