Finding the Fourth Proportional to 22,319.84, 30,803.06 and 12,760.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,319.84 : 30,803.06 = 12,760.10 : x
2. Step 2: Convert to fraction form
   22,319.84/30,803.06 = 12,760.10/x
3. Step 3: Cross multiply
   22,319.84x = 30,803.06 × 12,760.10
4. Step 4: Simplify right side
   22,319.84x = 393,049,908.09
5. Step 5: Solve for x
   x = 393,049,908.09/22,319.84
6. Step 6: Final answer
   x = 17,609.89