Finding the Fourth Proportional to 12,333.18, 18,494.88 and 5,313.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,333.18 : 18,494.88 = 5,313.72 : x
2. Step 2: Convert to fraction form
   12,333.18/18,494.88 = 5,313.72/x
3. Step 3: Cross multiply
   12,333.18x = 18,494.88 × 5,313.72
4. Step 4: Simplify right side
   12,333.18x = 98,276,613.75
5. Step 5: Solve for x
   x = 98,276,613.75/12,333.18
6. Step 6: Final answer
   x = 7,968.47