Finding the Fourth Proportional to 10,969.12, 16,438.96 and 7,071.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969.12 : 16,438.96 = 7,071.52 : x
2. Step 2: Convert to fraction form
   10,969.12/16,438.96 = 7,071.52/x
3. Step 3: Cross multiply
   10,969.12x = 16,438.96 × 7,071.52
4. Step 4: Simplify right side
   10,969.12x = 116,248,434.42
5. Step 5: Solve for x
   x = 116,248,434.42/10,969.12
6. Step 6: Final answer
   x = 10,597.79