Finding the Fourth Proportional to 12,225.16, 18,343.20 and 5,647.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,225.16 : 18,343.20 = 5,647.82 : x
2. Step 2: Convert to fraction form
   12,225.16/18,343.20 = 5,647.82/x
3. Step 3: Cross multiply
   12,225.16x = 18,343.20 × 5,647.82
4. Step 4: Simplify right side
   12,225.16x = 103,599,091.82
5. Step 5: Solve for x
   x = 103,599,091.82/12,225.16
6. Step 6: Final answer
   x = 8,474.26