Finding the Fourth Proportional to 12,613.96, 18,901.32 and 4,818.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.96 : 18,901.32 = 4,818.52 : x
2. Step 2: Convert to fraction form
   12,613.96/18,901.32 = 4,818.52/x
3. Step 3: Cross multiply
   12,613.96x = 18,901.32 × 4,818.52
4. Step 4: Simplify right side
   12,613.96x = 91,076,388.45
5. Step 5: Solve for x
   x = 91,076,388.45/12,613.96
6. Step 6: Final answer
   x = 7,220.29