Finding the Fourth Proportional to 10,896.58, 15,019.30 and 7,705.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,896.58 : 15,019.30 = 7,705.76 : x
2. Step 2: Convert to fraction form
   10,896.58/15,019.30 = 7,705.76/x
3. Step 3: Cross multiply
   10,896.58x = 15,019.30 × 7,705.76
4. Step 4: Simplify right side
   10,896.58x = 115,735,121.17
5. Step 5: Solve for x
   x = 115,735,121.17/10,896.58
6. Step 6: Final answer
   x = 10,621.23