Finding the Fourth Proportional to 9,696.32, 13,379.95 and 5,447.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,696.32 : 13,379.95 = 5,447.87 : x
2. Step 2: Convert to fraction form
   9,696.32/13,379.95 = 5,447.87/x
3. Step 3: Cross multiply
   9,696.32x = 13,379.95 × 5,447.87
4. Step 4: Simplify right side
   9,696.32x = 72,892,228.21
5. Step 5: Solve for x
   x = 72,892,228.21/9,696.32
6. Step 6: Final answer
   x = 7,517.51