Finding the Fourth Proportional to 12,322.70, 17,004 and 7,287.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,322.70 : 17,004 = 7,287.10 : x
2. Step 2: Convert to fraction form
   12,322.70/17,004 = 7,287.10/x
3. Step 3: Cross multiply
   12,322.70x = 17,004 × 7,287.10
4. Step 4: Simplify right side
   12,322.70x = 123,909,848.40
5. Step 5: Solve for x
   x = 123,909,848.40/12,322.70
6. Step 6: Final answer
   x = 10,055.41