Finding the Fourth Proportional to 43,198.37, 64,792.69 and 12,036.05

Step by Step Solution

1. Step 1: Write the proportion equation
   43,198.37 : 64,792.69 = 12,036.05 : x
2. Step 2: Convert to fraction form
   43,198.37/64,792.69 = 12,036.05/x
3. Step 3: Cross multiply
   43,198.37x = 64,792.69 × 12,036.05
4. Step 4: Simplify right side
   43,198.37x = 779,848,056.47
5. Step 5: Solve for x
   x = 779,848,056.47/43,198.37
6. Step 6: Final answer
   x = 18,052.72