Finding the Fourth Proportional to 12,671,172.63, 18,843,757.38 and 12,267,605.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671,172.63 : 18,843,757.38 = 12,267,605.52 : x
2. Step 2: Convert to fraction form
   12,671,172.63/18,843,757.38 = 12,267,605.52/x
3. Step 3: Cross multiply
   12,671,172.63x = 18,843,757.38 × 12,267,605.52
4. Step 4: Simplify right side
   12,671,172.63x = 231,167,782,052,428.72
5. Step 5: Solve for x
   x = 231,167,782,052,428.72/12,671,172.63
6. Step 6: Final answer
   x = 18,243,598.19