Finding the Fourth Proportional to 21,562,619.67, 29,756,016.09 and 12,269,983.77

Step by Step Solution

1. Step 1: Write the proportion equation
   21,562,619.67 : 29,756,016.09 = 12,269,983.77 : x
2. Step 2: Convert to fraction form
   21,562,619.67/29,756,016.09 = 12,269,983.77/x
3. Step 3: Cross multiply
   21,562,619.67x = 29,756,016.09 × 12,269,983.77
4. Step 4: Simplify right side
   21,562,619.67x = 365,105,834,484,158.88
5. Step 5: Solve for x
   x = 365,105,834,484,158.88/21,562,619.67
6. Step 6: Final answer
   x = 16,932,350.52