Finding the Fourth Proportional to 12,583.42, 17,364.98 and 7,278.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,583.42 : 17,364.98 = 7,278.12 : x
2. Step 2: Convert to fraction form
   12,583.42/17,364.98 = 7,278.12/x
3. Step 3: Cross multiply
   12,583.42x = 17,364.98 × 7,278.12
4. Step 4: Simplify right side
   12,583.42x = 126,384,426.43
5. Step 5: Solve for x
   x = 126,384,426.43/12,583.42
6. Step 6: Final answer
   x = 10,043.73