Finding the Fourth Proportional to 12,157.82, 16,784.42 and 8,401.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,157.82 : 16,784.42 = 8,401.19 : x
2. Step 2: Convert to fraction form
   12,157.82/16,784.42 = 8,401.19/x
3. Step 3: Cross multiply
   12,157.82x = 16,784.42 × 8,401.19
4. Step 4: Simplify right side
   12,157.82x = 141,009,117.15
5. Step 5: Solve for x
   x = 141,009,117.15/12,157.82
6. Step 6: Final answer
   x = 11,598.22