Finding the Fourth Proportional to 12,384.01, 17,090.01 and 6,718.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.01 : 17,090.01 = 6,718.78 : x
2. Step 2: Convert to fraction form
   12,384.01/17,090.01 = 6,718.78/x
3. Step 3: Cross multiply
   12,384.01x = 17,090.01 × 6,718.78
4. Step 4: Simplify right side
   12,384.01x = 114,824,017.39
5. Step 5: Solve for x
   x = 114,824,017.39/12,384.01
6. Step 6: Final answer
   x = 9,271.96