Finding the Fourth Proportional to 22,410.04, 30,927.18 and 12,981.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,410.04 : 30,927.18 = 12,981.88 : x
2. Step 2: Convert to fraction form
   22,410.04/30,927.18 = 12,981.88/x
3. Step 3: Cross multiply
   22,410.04x = 30,927.18 × 12,981.88
4. Step 4: Simplify right side
   22,410.04x = 401,492,939.50
5. Step 5: Solve for x
   x = 401,492,939.50/22,410.04
6. Step 6: Final answer
   x = 17,915.76