Finding the Fourth Proportional to 21,562,621.17, 29,756,018.16 and 12,269,985.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,562,621.17 : 29,756,018.16 = 12,269,985.27 : x
2. Step 2: Convert to fraction form
   21,562,621.17/29,756,018.16 = 12,269,985.27/x
3. Step 3: Cross multiply
   21,562,621.17x = 29,756,018.16 × 12,269,985.27
4. Step 4: Simplify right side
   21,562,621.17x = 365,105,904,517,052.50
5. Step 5: Solve for x
   x = 365,105,904,517,052.50/21,562,621.17
6. Step 6: Final answer
   x = 16,932,352.59