Finding the Fourth Proportional to 12,426.58, 17,145.86 and 9,071.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.58 : 17,145.86 = 9,071.22 : x
2. Step 2: Convert to fraction form
   12,426.58/17,145.86 = 9,071.22/x
3. Step 3: Cross multiply
   12,426.58x = 17,145.86 × 9,071.22
4. Step 4: Simplify right side
   12,426.58x = 155,533,868.15
5. Step 5: Solve for x
   x = 155,533,868.15/12,426.58
6. Step 6: Final answer
   x = 12,516.23