Finding the Fourth Proportional to 128,568,952.69, 177,426,443.73 and 69,832,766.59

Step by Step Solution

1. Step 1: Write the proportion equation
   128,568,952.69 : 177,426,443.73 = 69,832,766.59 : x
2. Step 2: Convert to fraction form
   128,568,952.69/177,426,443.73 = 69,832,766.59/x
3. Step 3: Cross multiply
   128,568,952.69x = 177,426,443.73 × 69,832,766.59
4. Step 4: Simplify right side
   128,568,952.69x = 12,390,179,431,890,858
5. Step 5: Solve for x
   x = 12,390,179,431,890,858/128,568,952.69
6. Step 6: Final answer
   x = 96,369,918.03