Finding the Fourth Proportional to 22,447.84, 30,978.10 and 12,376.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,447.84 : 30,978.10 = 12,376.06 : x
2. Step 2: Convert to fraction form
   22,447.84/30,978.10 = 12,376.06/x
3. Step 3: Cross multiply
   22,447.84x = 30,978.10 × 12,376.06
4. Step 4: Simplify right side
   22,447.84x = 383,386,824.29
5. Step 5: Solve for x
   x = 383,386,824.29/22,447.84
6. Step 6: Final answer
   x = 17,079.01