Finding the Fourth Proportional to 9,852.80, 13,596.61 and 5,376.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,852.80 : 13,596.61 = 5,376.61 : x
2. Step 2: Convert to fraction form
   9,852.80/13,596.61 = 5,376.61/x
3. Step 3: Cross multiply
   9,852.80x = 13,596.61 × 5,376.61
4. Step 4: Simplify right side
   9,852.80x = 73,103,574.43
5. Step 5: Solve for x
   x = 73,103,574.43/9,852.80
6. Step 6: Final answer
   x = 7,419.57