Finding the Fourth Proportional to 15,822.42, 21,834.06 and 8,748.39

Step by Step Solution

1. Step 1: Write the proportion equation
   15,822.42 : 21,834.06 = 8,748.39 : x
2. Step 2: Convert to fraction form
   15,822.42/21,834.06 = 8,748.39/x
3. Step 3: Cross multiply
   15,822.42x = 21,834.06 × 8,748.39
4. Step 4: Simplify right side
   15,822.42x = 191,012,872.16
5. Step 5: Solve for x
   x = 191,012,872.16/15,822.42
6. Step 6: Final answer
   x = 12,072.29