Finding the Fourth Proportional to 10,622.50, 15,941.38 and 8,567.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,622.50 : 15,941.38 = 8,567.34 : x
2. Step 2: Convert to fraction form
   10,622.50/15,941.38 = 8,567.34/x
3. Step 3: Cross multiply
   10,622.50x = 15,941.38 × 8,567.34
4. Step 4: Simplify right side
   10,622.50x = 136,575,222.53
5. Step 5: Solve for x
   x = 136,575,222.53/10,622.50
6. Step 6: Final answer
   x = 12,857.16