Finding the Fourth Proportional to 12,384.12, 17,090.38 and 7,079.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.12 : 17,090.38 = 7,079.43 : x
2. Step 2: Convert to fraction form
   12,384.12/17,090.38 = 7,079.43/x
3. Step 3: Cross multiply
   12,384.12x = 17,090.38 × 7,079.43
4. Step 4: Simplify right side
   12,384.12x = 120,990,113.49
5. Step 5: Solve for x
   x = 120,990,113.49/12,384.12
6. Step 6: Final answer
   x = 9,769.78