Finding the Fourth Proportional to 10,610.78, 14,627.67 and 7,457.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,610.78 : 14,627.67 = 7,457.18 : x
2. Step 2: Convert to fraction form
   10,610.78/14,627.67 = 7,457.18/x
3. Step 3: Cross multiply
   10,610.78x = 14,627.67 × 7,457.18
4. Step 4: Simplify right side
   10,610.78x = 109,081,168.17
5. Step 5: Solve for x
   x = 109,081,168.17/10,610.78
6. Step 6: Final answer
   x = 10,280.22