Finding the Fourth Proportional to 4,953.45, 7,425.18 and 3,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   4,953.45 : 7,425.18 = 3,105.86 : x
2. Step 2: Convert to fraction form
   4,953.45/7,425.18 = 3,105.86/x
3. Step 3: Cross multiply
   4,953.45x = 7,425.18 × 3,105.86
4. Step 4: Simplify right side
   4,953.45x = 23,061,569.55
5. Step 5: Solve for x
   x = 23,061,569.55/4,953.45
6. Step 6: Final answer
   x = 4,655.66