Finding the Fourth Proportional to 12,144,440.36, 18,213,973.43 and 3,506,665.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144,440.36 : 18,213,973.43 = 3,506,665.85 : x
2. Step 2: Convert to fraction form
   12,144,440.36/18,213,973.43 = 3,506,665.85/x
3. Step 3: Cross multiply
   12,144,440.36x = 18,213,973.43 × 3,506,665.85
4. Step 4: Simplify right side
   12,144,440.36x = 63,870,318,511,185.17
5. Step 5: Solve for x
   x = 63,870,318,511,185.17/12,144,440.36
6. Step 6: Final answer
   x = 5,259,222.87