Finding the Fourth Proportional to 9,338.18, 12,886.52 and 5,089.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,338.18 : 12,886.52 = 5,089.28 : x
2. Step 2: Convert to fraction form
   9,338.18/12,886.52 = 5,089.28/x
3. Step 3: Cross multiply
   9,338.18x = 12,886.52 × 5,089.28
4. Step 4: Simplify right side
   9,338.18x = 65,583,108.51
5. Step 5: Solve for x
   x = 65,583,108.51/9,338.18
6. Step 6: Final answer
   x = 7,023.11