Finding the Fourth Proportional to 9,811.07, 13,530.06 and 7,569.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,811.07 : 13,530.06 = 7,569.39 : x
2. Step 2: Convert to fraction form
   9,811.07/13,530.06 = 7,569.39/x
3. Step 3: Cross multiply
   9,811.07x = 13,530.06 × 7,569.39
4. Step 4: Simplify right side
   9,811.07x = 102,414,300.86
5. Step 5: Solve for x
   x = 102,414,300.86/9,811.07
6. Step 6: Final answer
   x = 10,438.65