Finding the Fourth Proportional to 12,946.21, 17,866.42 and 7,282.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,946.21 : 17,866.42 = 7,282.74 : x
2. Step 2: Convert to fraction form
   12,946.21/17,866.42 = 7,282.74/x
3. Step 3: Cross multiply
   12,946.21x = 17,866.42 × 7,282.74
4. Step 4: Simplify right side
   12,946.21x = 130,116,491.59
5. Step 5: Solve for x
   x = 130,116,491.59/12,946.21
6. Step 6: Final answer
   x = 10,050.55