Finding the Fourth Proportional to 10,300.68, 15,453.18 and 4,458.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.68 : 15,453.18 = 4,458.12 : x
2. Step 2: Convert to fraction form
   10,300.68/15,453.18 = 4,458.12/x
3. Step 3: Cross multiply
   10,300.68x = 15,453.18 × 4,458.12
4. Step 4: Simplify right side
   10,300.68x = 68,892,130.82
5. Step 5: Solve for x
   x = 68,892,130.82/10,300.68
6. Step 6: Final answer
   x = 6,688.11