Finding the Fourth Proportional to 12,955.96, 17,889.27 and 10,118.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.96 : 17,889.27 = 10,118.38 : x
2. Step 2: Convert to fraction form
   12,955.96/17,889.27 = 10,118.38/x
3. Step 3: Cross multiply
   12,955.96x = 17,889.27 × 10,118.38
4. Step 4: Simplify right side
   12,955.96x = 181,010,431.78
5. Step 5: Solve for x
   x = 181,010,431.78/12,955.96
6. Step 6: Final answer
   x = 13,971.21