Finding the Fourth Proportional to 8,317.54, 12,476.94 and 3,123.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.54 : 12,476.94 = 3,123.46 : x
2. Step 2: Convert to fraction form
   8,317.54/12,476.94 = 3,123.46/x
3. Step 3: Cross multiply
   8,317.54x = 12,476.94 × 3,123.46
4. Step 4: Simplify right side
   8,317.54x = 38,971,223.01
5. Step 5: Solve for x
   x = 38,971,223.01/8,317.54
6. Step 6: Final answer
   x = 4,685.43