Finding the Fourth Proportional to 9,816.31, 13,546.50 and 5,340.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,816.31 : 13,546.50 = 5,340.06 : x
2. Step 2: Convert to fraction form
   9,816.31/13,546.50 = 5,340.06/x
3. Step 3: Cross multiply
   9,816.31x = 13,546.50 × 5,340.06
4. Step 4: Simplify right side
   9,816.31x = 72,339,083.16
5. Step 5: Solve for x
   x = 72,339,083.16/9,816.31
6. Step 6: Final answer
   x = 7,369.27