Finding the Fourth Proportional to 12,475.45, 17,216.67 and 7,171.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,475.45 : 17,216.67 = 7,171.93 : x
2. Step 2: Convert to fraction form
   12,475.45/17,216.67 = 7,171.93/x
3. Step 3: Cross multiply
   12,475.45x = 17,216.67 × 7,171.93
4. Step 4: Simplify right side
   12,475.45x = 123,476,752.07
5. Step 5: Solve for x
   x = 123,476,752.07/12,475.45
6. Step 6: Final answer
   x = 9,897.58