Finding the Fourth Proportional to 12,519.63, 17,281.76 and 7,803.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,519.63 : 17,281.76 = 7,803.81 : x
2. Step 2: Convert to fraction form
   12,519.63/17,281.76 = 7,803.81/x
3. Step 3: Cross multiply
   12,519.63x = 17,281.76 × 7,803.81
4. Step 4: Simplify right side
   12,519.63x = 134,863,532.49
5. Step 5: Solve for x
   x = 134,863,532.49/12,519.63
6. Step 6: Final answer
   x = 10,772.17