Finding the Fourth Proportional to 8,448,036.20, 12,667,857.72 and 2,690,018.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,448,036.20 : 12,667,857.72 = 2,690,018.12 : x
2. Step 2: Convert to fraction form
   8,448,036.20/12,667,857.72 = 2,690,018.12/x
3. Step 3: Cross multiply
   8,448,036.20x = 12,667,857.72 × 2,690,018.12
4. Step 4: Simplify right side
   8,448,036.20x = 34,076,766,808,381.89
5. Step 5: Solve for x
   x = 34,076,766,808,381.89/8,448,036.20
6. Step 6: Final answer
   x = 4,033,690.91