Finding the Fourth Proportional to 12,373.46, 18,561.86 and 3,608.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,373.46 : 18,561.86 = 3,608.31 : x
2. Step 2: Convert to fraction form
   12,373.46/18,561.86 = 3,608.31/x
3. Step 3: Cross multiply
   12,373.46x = 18,561.86 × 3,608.31
4. Step 4: Simplify right side
   12,373.46x = 66,977,010.15
5. Step 5: Solve for x
   x = 66,977,010.15/12,373.46
6. Step 6: Final answer
   x = 5,412.96