Finding the Fourth Proportional to 12,812,660.56, 17,681,473.74 and 7,011,443.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,812,660.56 : 17,681,473.74 = 7,011,443.80 : x
2. Step 2: Convert to fraction form
   12,812,660.56/17,681,473.74 = 7,011,443.80/x
3. Step 3: Cross multiply
   12,812,660.56x = 17,681,473.74 × 7,011,443.80
4. Step 4: Simplify right side
   12,812,660.56x = 123,972,659,429,185.80
5. Step 5: Solve for x
   x = 123,972,659,429,185.80/12,812,660.56
6. Step 6: Final answer
   x = 9,675,793.63