Finding the Fourth Proportional to 9,945.38, 14,915.34 and 4,100.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.38 : 14,915.34 = 4,100.63 : x
2. Step 2: Convert to fraction form
   9,945.38/14,915.34 = 4,100.63/x
3. Step 3: Cross multiply
   9,945.38x = 14,915.34 × 4,100.63
4. Step 4: Simplify right side
   9,945.38x = 61,162,216.09
5. Step 5: Solve for x
   x = 61,162,216.09/9,945.38
6. Step 6: Final answer
   x = 6,149.81