Finding the Fourth Proportional to 12,081.54, 16,657.09 and 7,825.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.54 : 16,657.09 = 7,825.08 : x
2. Step 2: Convert to fraction form
   12,081.54/16,657.09 = 7,825.08/x
3. Step 3: Cross multiply
   12,081.54x = 16,657.09 × 7,825.08
4. Step 4: Simplify right side
   12,081.54x = 130,343,061.82
5. Step 5: Solve for x
   x = 130,343,061.82/12,081.54
6. Step 6: Final answer
   x = 10,788.61