Finding the Fourth Proportional to 12,805,662.12, 19,199,960.67 and 7,051,105.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,805,662.12 : 19,199,960.67 = 7,051,105.61 : x
2. Step 2: Convert to fraction form
   12,805,662.12/19,199,960.67 = 7,051,105.61/x
3. Step 3: Cross multiply
   12,805,662.12x = 19,199,960.67 × 7,051,105.61
4. Step 4: Simplify right side
   12,805,662.12x = 135,380,950,392,016.38
5. Step 5: Solve for x
   x = 135,380,950,392,016.38/12,805,662.12
6. Step 6: Final answer
   x = 10,571,960.21