Finding the Fourth Proportional to 10,981.82, 15,146.52 and 7,624.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.82 : 15,146.52 = 7,624.64 : x
2. Step 2: Convert to fraction form
   10,981.82/15,146.52 = 7,624.64/x
3. Step 3: Cross multiply
   10,981.82x = 15,146.52 × 7,624.64
4. Step 4: Simplify right side
   10,981.82x = 115,486,762.25
5. Step 5: Solve for x
   x = 115,486,762.25/10,981.82
6. Step 6: Final answer
   x = 10,516.18