Finding the Fourth Proportional to 9,810.72, 13,537.96 and 5,560.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.72 : 13,537.96 = 5,560.81 : x
2. Step 2: Convert to fraction form
   9,810.72/13,537.96 = 5,560.81/x
3. Step 3: Cross multiply
   9,810.72x = 13,537.96 × 5,560.81
4. Step 4: Simplify right side
   9,810.72x = 75,281,975.60
5. Step 5: Solve for x
   x = 75,281,975.60/9,810.72
6. Step 6: Final answer
   x = 7,673.44