Finding the Fourth Proportional to 9,009.35, 12,429.31 and 6,020.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,009.35 : 12,429.31 = 6,020.45 : x
2. Step 2: Convert to fraction form
   9,009.35/12,429.31 = 6,020.45/x
3. Step 3: Cross multiply
   9,009.35x = 12,429.31 × 6,020.45
4. Step 4: Simplify right side
   9,009.35x = 74,830,039.39
5. Step 5: Solve for x
   x = 74,830,039.39/9,009.35
6. Step 6: Final answer
   x = 8,305.82