Finding the Fourth Proportional to 22,431.60, 30,955.96 and 12,359.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,431.60 : 30,955.96 = 12,359.94 : x
2. Step 2: Convert to fraction form
   22,431.60/30,955.96 = 12,359.94/x
3. Step 3: Cross multiply
   22,431.60x = 30,955.96 × 12,359.94
4. Step 4: Simplify right side
   22,431.60x = 382,613,707.61
5. Step 5: Solve for x
   x = 382,613,707.61/22,431.60
6. Step 6: Final answer
   x = 17,056.91