Finding the Fourth Proportional to 12,322.19, 17,005.34 and 7,606.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,322.19 : 17,005.34 = 7,606.55 : x
2. Step 2: Convert to fraction form
   12,322.19/17,005.34 = 7,606.55/x
3. Step 3: Cross multiply
   12,322.19x = 17,005.34 × 7,606.55
4. Step 4: Simplify right side
   12,322.19x = 129,352,030.51
5. Step 5: Solve for x
   x = 129,352,030.51/12,322.19
6. Step 6: Final answer
   x = 10,497.48