Finding the Fourth Proportional to 9,685.46, 13,365.38 and 5,436.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,685.46 : 13,365.38 = 5,436.12 : x
2. Step 2: Convert to fraction form
   9,685.46/13,365.38 = 5,436.12/x
3. Step 3: Cross multiply
   9,685.46x = 13,365.38 × 5,436.12
4. Step 4: Simplify right side
   9,685.46x = 72,655,715.52
5. Step 5: Solve for x
   x = 72,655,715.52/9,685.46
6. Step 6: Final answer
   x = 7,501.52