Finding the Fourth Proportional to 22,431.18, 30,954.88 and 12,359.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,431.18 : 30,954.88 = 12,359.34 : x
2. Step 2: Convert to fraction form
   22,431.18/30,954.88 = 12,359.34/x
3. Step 3: Cross multiply
   22,431.18x = 30,954.88 × 12,359.34
4. Step 4: Simplify right side
   22,431.18x = 382,581,886.58
5. Step 5: Solve for x
   x = 382,581,886.58/22,431.18
6. Step 6: Final answer
   x = 17,055.81