Finding the Fourth Proportional to 9,012.29, 12,429.92 and 5,782.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.29 : 12,429.92 = 5,782.41 : x
2. Step 2: Convert to fraction form
   9,012.29/12,429.92 = 5,782.41/x
3. Step 3: Cross multiply
   9,012.29x = 12,429.92 × 5,782.41
4. Step 4: Simplify right side
   9,012.29x = 71,874,893.71
5. Step 5: Solve for x
   x = 71,874,893.71/9,012.29
6. Step 6: Final answer
   x = 7,975.21