Finding the Fourth Proportional to 12,383.82, 17,090.84 and 7,077.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383.82 : 17,090.84 = 7,077.61 : x
2. Step 2: Convert to fraction form
   12,383.82/17,090.84 = 7,077.61/x
3. Step 3: Cross multiply
   12,383.82x = 17,090.84 × 7,077.61
4. Step 4: Simplify right side
   12,383.82x = 120,962,300.09
5. Step 5: Solve for x
   x = 120,962,300.09/12,383.82
6. Step 6: Final answer
   x = 9,767.77