Finding the Fourth Proportional to 9,661.07, 13,333.34 and 5,412.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,661.07 : 13,333.34 = 5,412.82 : x
2. Step 2: Convert to fraction form
   9,661.07/13,333.34 = 5,412.82/x
3. Step 3: Cross multiply
   9,661.07x = 13,333.34 × 5,412.82
4. Step 4: Simplify right side
   9,661.07x = 72,170,969.42
5. Step 5: Solve for x
   x = 72,170,969.42/9,661.07
6. Step 6: Final answer
   x = 7,470.29