Finding the Fourth Proportional to 9,696.76, 13,389.42 and 7,904.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,696.76 : 13,389.42 = 7,904.52 : x
2. Step 2: Convert to fraction form
   9,696.76/13,389.42 = 7,904.52/x
3. Step 3: Cross multiply
   9,696.76x = 13,389.42 × 7,904.52
4. Step 4: Simplify right side
   9,696.76x = 105,836,938.18
5. Step 5: Solve for x
   x = 105,836,938.18/9,696.76
6. Step 6: Final answer
   x = 10,914.67