Finding the Fourth Proportional to 9,810.46, 13,535.12 and 5,561.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.46 : 13,535.12 = 5,561.06 : x
2. Step 2: Convert to fraction form
   9,810.46/13,535.12 = 5,561.06/x
3. Step 3: Cross multiply
   9,810.46x = 13,535.12 × 5,561.06
4. Step 4: Simplify right side
   9,810.46x = 75,269,586.62
5. Step 5: Solve for x
   x = 75,269,586.62/9,810.46
6. Step 6: Final answer
   x = 7,672.38