Finding the Fourth Proportional to 13,141.56, 18,135.25 and 7,476.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,141.56 : 18,135.25 = 7,476.29 : x
2. Step 2: Convert to fraction form
   13,141.56/18,135.25 = 7,476.29/x
3. Step 3: Cross multiply
   13,141.56x = 18,135.25 × 7,476.29
4. Step 4: Simplify right side
   13,141.56x = 135,584,388.22
5. Step 5: Solve for x
   x = 135,584,388.22/13,141.56
6. Step 6: Final answer
   x = 10,317.22