Finding the Fourth Proportional to 12,361.76, 17,061.63 and 9,667.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361.76 : 17,061.63 = 9,667.63 : x
2. Step 2: Convert to fraction form
   12,361.76/17,061.63 = 9,667.63/x
3. Step 3: Cross multiply
   12,361.76x = 17,061.63 × 9,667.63
4. Step 4: Simplify right side
   12,361.76x = 164,945,483.38
5. Step 5: Solve for x
   x = 164,945,483.38/12,361.76
6. Step 6: Final answer
   x = 13,343.21