Finding the Fourth Proportional to 9,476.59, 13,076.81 and 9,158.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,476.59 : 13,076.81 = 9,158.12 : x
2. Step 2: Convert to fraction form
   9,476.59/13,076.81 = 9,158.12/x
3. Step 3: Cross multiply
   9,476.59x = 13,076.81 × 9,158.12
4. Step 4: Simplify right side
   9,476.59x = 119,758,918.37
5. Step 5: Solve for x
   x = 119,758,918.37/9,476.59
6. Step 6: Final answer
   x = 12,637.34