Finding the Fourth Proportional to 9,429.59, 14,144.42 and 3,187.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.59 : 14,144.42 = 3,187.94 : x
2. Step 2: Convert to fraction form
   9,429.59/14,144.42 = 3,187.94/x
3. Step 3: Cross multiply
   9,429.59x = 14,144.42 × 3,187.94
4. Step 4: Simplify right side
   9,429.59x = 45,091,562.29
5. Step 5: Solve for x
   x = 45,091,562.29/9,429.59
6. Step 6: Final answer
   x = 4,781.92