Finding the Fourth Proportional to 17,918.96, 26,869.73 and 5,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,918.96 : 26,869.73 = 5,436.72 : x
2. Step 2: Convert to fraction form
   17,918.96/26,869.73 = 5,436.72/x
3. Step 3: Cross multiply
   17,918.96x = 26,869.73 × 5,436.72
4. Step 4: Simplify right side
   17,918.96x = 146,083,171.30
5. Step 5: Solve for x
   x = 146,083,171.30/17,918.96
6. Step 6: Final answer
   x = 8,152.44