Finding the Fourth Proportional to 12,471.52, 17,211.54 and 7,168.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,471.52 : 17,211.54 = 7,168.45 : x
2. Step 2: Convert to fraction form
   12,471.52/17,211.54 = 7,168.45/x
3. Step 3: Cross multiply
   12,471.52x = 17,211.54 × 7,168.45
4. Step 4: Simplify right side
   12,471.52x = 123,380,063.91
5. Step 5: Solve for x
   x = 123,380,063.91/12,471.52
6. Step 6: Final answer
   x = 9,892.95