Finding the Fourth Proportional to 12,806,896.45, 17,673,657.32 and 7,005,678.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806,896.45 : 17,673,657.32 = 7,005,678.25 : x
2. Step 2: Convert to fraction form
   12,806,896.45/17,673,657.32 = 7,005,678.25/x
3. Step 3: Cross multiply
   12,806,896.45x = 17,673,657.32 × 7,005,678.25
4. Step 4: Simplify right side
   12,806,896.45x = 123,815,956,561,280.62
5. Step 5: Solve for x
   x = 123,815,956,561,280.62/12,806,896.45
6. Step 6: Final answer
   x = 9,667,912.68