Finding the Fourth Proportional to 9,201.38, 12,699.56 and 5,424.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,201.38 : 12,699.56 = 5,424.32 : x
2. Step 2: Convert to fraction form
   9,201.38/12,699.56 = 5,424.32/x
3. Step 3: Cross multiply
   9,201.38x = 12,699.56 × 5,424.32
4. Step 4: Simplify right side
   9,201.38x = 68,886,522.61
5. Step 5: Solve for x
   x = 68,886,522.61/9,201.38
6. Step 6: Final answer
   x = 7,486.55