Finding the Fourth Proportional to 22,428.18, 30,950.75 and 12,356.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,428.18 : 30,950.75 = 12,356.34 : x
2. Step 2: Convert to fraction form
   22,428.18/30,950.75 = 12,356.34/x
3. Step 3: Cross multiply
   22,428.18x = 30,950.75 × 12,356.34
4. Step 4: Simplify right side
   22,428.18x = 382,437,928.47
5. Step 5: Solve for x
   x = 382,437,928.47/22,428.18
6. Step 6: Final answer
   x = 17,051.67