Finding the Fourth Proportional to 30,443.84, 45,672.72 and 12,914.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,443.84 : 45,672.72 = 12,914.24 : x
2. Step 2: Convert to fraction form
   30,443.84/45,672.72 = 12,914.24/x
3. Step 3: Cross multiply
   30,443.84x = 45,672.72 × 12,914.24
4. Step 4: Simplify right side
   30,443.84x = 589,828,467.53
5. Step 5: Solve for x
   x = 589,828,467.53/30,443.84
6. Step 6: Final answer
   x = 19,374.31