Finding the Fourth Proportional to 12,558.18, 17,323.76 and 7,450.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,558.18 : 17,323.76 = 7,450.73 : x
2. Step 2: Convert to fraction form
   12,558.18/17,323.76 = 7,450.73/x
3. Step 3: Cross multiply
   12,558.18x = 17,323.76 × 7,450.73
4. Step 4: Simplify right side
   12,558.18x = 129,074,534.47
5. Step 5: Solve for x
   x = 129,074,534.47/12,558.18
6. Step 6: Final answer
   x = 10,278.12