Finding the Fourth Proportional to 8,145.06, 12,214.12 and 4,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145.06 : 12,214.12 = 4,636.72 : x
2. Step 2: Convert to fraction form
   8,145.06/12,214.12 = 4,636.72/x
3. Step 3: Cross multiply
   8,145.06x = 12,214.12 × 4,636.72
4. Step 4: Simplify right side
   8,145.06x = 56,633,419.46
5. Step 5: Solve for x
   x = 56,633,419.46/8,145.06
6. Step 6: Final answer
   x = 6,953.10