Finding the Fourth Proportional to 9,810.38, 13,538.39 and 5,334.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.38 : 13,538.39 = 5,334.12 : x
2. Step 2: Convert to fraction form
   9,810.38/13,538.39 = 5,334.12/x
3. Step 3: Cross multiply
   9,810.38x = 13,538.39 × 5,334.12
4. Step 4: Simplify right side
   9,810.38x = 72,215,370.20
5. Step 5: Solve for x
   x = 72,215,370.20/9,810.38
6. Step 6: Final answer
   x = 7,361.12