Finding the Fourth Proportional to 21,810.86, 30,096.74 and 12,251.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,810.86 : 30,096.74 = 12,251.82 : x
2. Step 2: Convert to fraction form
   21,810.86/30,096.74 = 12,251.82/x
3. Step 3: Cross multiply
   21,810.86x = 30,096.74 × 12,251.82
4. Step 4: Simplify right side
   21,810.86x = 368,739,841.07
5. Step 5: Solve for x
   x = 368,739,841.07/21,810.86
6. Step 6: Final answer
   x = 16,906.25