Finding the Fourth Proportional to 9,435.33, 13,020.57 and 5,186.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,435.33 : 13,020.57 = 5,186.16 : x
2. Step 2: Convert to fraction form
   9,435.33/13,020.57 = 5,186.16/x
3. Step 3: Cross multiply
   9,435.33x = 13,020.57 × 5,186.16
4. Step 4: Simplify right side
   9,435.33x = 67,526,759.31
5. Step 5: Solve for x
   x = 67,526,759.31/9,435.33
6. Step 6: Final answer
   x = 7,156.80