Finding the Fourth Proportional to 12,314.84, 18,469.44 and 4,917.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,314.84 : 18,469.44 = 4,917.31 : x
2. Step 2: Convert to fraction form
   12,314.84/18,469.44 = 4,917.31/x
3. Step 3: Cross multiply
   12,314.84x = 18,469.44 × 4,917.31
4. Step 4: Simplify right side
   12,314.84x = 90,819,915.83
5. Step 5: Solve for x
   x = 90,819,915.83/12,314.84
6. Step 6: Final answer
   x = 7,374.84