Finding the Fourth Proportional to 9,862.38, 13,610.16 and 5,386.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,862.38 : 13,610.16 = 5,386.05 : x
2. Step 2: Convert to fraction form
   9,862.38/13,610.16 = 5,386.05/x
3. Step 3: Cross multiply
   9,862.38x = 13,610.16 × 5,386.05
4. Step 4: Simplify right side
   9,862.38x = 73,305,002.27
5. Step 5: Solve for x
   x = 73,305,002.27/9,862.38
6. Step 6: Final answer
   x = 7,432.79