Finding the Fourth Proportional to 8,087.82, 12,128.32 and 3,409.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,087.82 : 12,128.32 = 3,409.93 : x
2. Step 2: Convert to fraction form
   8,087.82/12,128.32 = 3,409.93/x
3. Step 3: Cross multiply
   8,087.82x = 12,128.32 × 3,409.93
4. Step 4: Simplify right side
   8,087.82x = 41,356,722.22
5. Step 5: Solve for x
   x = 41,356,722.22/8,087.82
6. Step 6: Final answer
   x = 5,113.46