Finding the Fourth Proportional to 10,612.78, 14,630.43 and 7,459.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,612.78 : 14,630.43 = 7,459.18 : x
2. Step 2: Convert to fraction form
   10,612.78/14,630.43 = 7,459.18/x
3. Step 3: Cross multiply
   10,612.78x = 14,630.43 × 7,459.18
4. Step 4: Simplify right side
   10,612.78x = 109,131,010.85
5. Step 5: Solve for x
   x = 109,131,010.85/10,612.78
6. Step 6: Final answer
   x = 10,282.98