Finding the Fourth Proportional to 12,426.95, 17,146.38 and 9,071.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.95 : 17,146.38 = 9,071.59 : x
2. Step 2: Convert to fraction form
   12,426.95/17,146.38 = 9,071.59/x
3. Step 3: Cross multiply
   12,426.95x = 17,146.38 × 9,071.59
4. Step 4: Simplify right side
   12,426.95x = 155,544,929.34
5. Step 5: Solve for x
   x = 155,544,929.34/12,426.95
6. Step 6: Final answer
   x = 12,516.74