Finding the Fourth Proportional to 16,381,788, 24,553,548.72 and 12,325,243.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,381,788 : 24,553,548.72 = 12,325,243.20 : x
2. Step 2: Convert to fraction form
   16,381,788/24,553,548.72 = 12,325,243.20/x
3. Step 3: Cross multiply
   16,381,788x = 24,553,548.72 × 12,325,243.20
4. Step 4: Simplify right side
   16,381,788x = 302,628,459,397,048.69
5. Step 5: Solve for x
   x = 302,628,459,397,048.69/16,381,788
6. Step 6: Final answer
   x = 18,473,469.40