Finding the Fourth Proportional to 9,006.66, 12,429.81 and 5,028.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,006.66 : 12,429.81 = 5,028.39 : x
2. Step 2: Convert to fraction form
   9,006.66/12,429.81 = 5,028.39/x
3. Step 3: Cross multiply
   9,006.66x = 12,429.81 × 5,028.39
4. Step 4: Simplify right side
   9,006.66x = 62,501,932.31
5. Step 5: Solve for x
   x = 62,501,932.31/9,006.66
6. Step 6: Final answer
   x = 6,939.52