Finding the Fourth Proportional to 12,405.03, 17,125.61 and 9,566.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,405.03 : 17,125.61 = 9,566.25 : x
2. Step 2: Convert to fraction form
   12,405.03/17,125.61 = 9,566.25/x
3. Step 3: Cross multiply
   12,405.03x = 17,125.61 × 9,566.25
4. Step 4: Simplify right side
   12,405.03x = 163,827,818.83
5. Step 5: Solve for x
   x = 163,827,818.83/12,405.03
6. Step 6: Final answer
   x = 13,206.56