Finding the Fourth Proportional to 9,687.38, 14,532.42 and 3,115.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,687.38 : 14,532.42 = 3,115.58 : x
2. Step 2: Convert to fraction form
   9,687.38/14,532.42 = 3,115.58/x
3. Step 3: Cross multiply
   9,687.38x = 14,532.42 × 3,115.58
4. Step 4: Simplify right side
   9,687.38x = 45,276,917.10
5. Step 5: Solve for x
   x = 45,276,917.10/9,687.38
6. Step 6: Final answer
   x = 4,673.80