Finding the Fourth Proportional to 10,900.72, 15,042.54 and 6,185.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.72 : 15,042.54 = 6,185.26 : x
2. Step 2: Convert to fraction form
   10,900.72/15,042.54 = 6,185.26/x
3. Step 3: Cross multiply
   10,900.72x = 15,042.54 × 6,185.26
4. Step 4: Simplify right side
   10,900.72x = 93,042,020.96
5. Step 5: Solve for x
   x = 93,042,020.96/10,900.72
6. Step 6: Final answer
   x = 8,535.40