Finding the Fourth Proportional to 22,368, 30,867.84 and 12,942.03

Step by Step Solution

1. Step 1: Write the proportion equation
   22,368 : 30,867.84 = 12,942.03 : x
2. Step 2: Convert to fraction form
   22,368/30,867.84 = 12,942.03/x
3. Step 3: Cross multiply
   22,368x = 30,867.84 × 12,942.03
4. Step 4: Simplify right side
   22,368x = 399,492,511.32
5. Step 5: Solve for x
   x = 399,492,511.32/22,368
6. Step 6: Final answer
   x = 17,860.00