Finding the Fourth Proportional to 9,685.17, 13,364.06 and 5,436.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,685.17 : 13,364.06 = 5,436.45 : x
2. Step 2: Convert to fraction form
   9,685.17/13,364.06 = 5,436.45/x
3. Step 3: Cross multiply
   9,685.17x = 13,364.06 × 5,436.45
4. Step 4: Simplify right side
   9,685.17x = 72,653,016.80
5. Step 5: Solve for x
   x = 72,653,016.80/9,685.17
6. Step 6: Final answer
   x = 7,501.47