Finding the Fourth Proportional to 9,978,738.36, 14,967,976.32 and 2,405,643.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,738.36 : 14,967,976.32 = 2,405,643.36 : x
2. Step 2: Convert to fraction form
   9,978,738.36/14,967,976.32 = 2,405,643.36/x
3. Step 3: Cross multiply
   9,978,738.36x = 14,967,976.32 × 2,405,643.36
4. Step 4: Simplify right side
   9,978,738.36x = 36,007,612,846,845.23
5. Step 5: Solve for x
   x = 36,007,612,846,845.23/9,978,738.36
6. Step 6: Final answer
   x = 3,608,433.41