Finding the Fourth Proportional to 9,960,665.33, 13,752,064.79 and 8,129,491.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960,665.33 : 13,752,064.79 = 8,129,491.59 : x
2. Step 2: Convert to fraction form
   9,960,665.33/13,752,064.79 = 8,129,491.59/x
3. Step 3: Cross multiply
   9,960,665.33x = 13,752,064.79 × 8,129,491.59
4. Step 4: Simplify right side
   9,960,665.33x = 111,797,295,055,440.11
5. Step 5: Solve for x
   x = 111,797,295,055,440.11/9,960,665.33
6. Step 6: Final answer
   x = 11,223,878.26