Finding the Fourth Proportional to 22,443.84, 30,972.54 and 12,884.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.84 : 30,972.54 = 12,884.04 : x
2. Step 2: Convert to fraction form
   22,443.84/30,972.54 = 12,884.04/x
3. Step 3: Cross multiply
   22,443.84x = 30,972.54 × 12,884.04
4. Step 4: Simplify right side
   22,443.84x = 399,051,444.26
5. Step 5: Solve for x
   x = 399,051,444.26/22,443.84
6. Step 6: Final answer
   x = 17,780.00