Finding the Fourth Proportional to 22,402.42, 30,908.39 and 12,710.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,402.42 : 30,908.39 = 12,710.28 : x
2. Step 2: Convert to fraction form
   22,402.42/30,908.39 = 12,710.28/x
3. Step 3: Cross multiply
   22,402.42x = 30,908.39 × 12,710.28
4. Step 4: Simplify right side
   22,402.42x = 392,854,082.81
5. Step 5: Solve for x
   x = 392,854,082.81/22,402.42
6. Step 6: Final answer
   x = 17,536.23