Finding the Fourth Proportional to 22,375.56, 30,875.88 and 12,942.36

Step by Step Solution

1. Step 1: Write the proportion equation
   22,375.56 : 30,875.88 = 12,942.36 : x
2. Step 2: Convert to fraction form
   22,375.56/30,875.88 = 12,942.36/x
3. Step 3: Cross multiply
   22,375.56x = 30,875.88 × 12,942.36
4. Step 4: Simplify right side
   22,375.56x = 399,606,754.28
5. Step 5: Solve for x
   x = 399,606,754.28/22,375.56
6. Step 6: Final answer
   x = 17,859.07