Finding the Fourth Proportional to 19,105.10, 28,660.54 and 5,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,105.10 : 28,660.54 = 5,958.50 : x
2. Step 2: Convert to fraction form
   19,105.10/28,660.54 = 5,958.50/x
3. Step 3: Cross multiply
   19,105.10x = 28,660.54 × 5,958.50
4. Step 4: Simplify right side
   19,105.10x = 170,773,827.59
5. Step 5: Solve for x
   x = 170,773,827.59/19,105.10
6. Step 6: Final answer
   x = 8,938.65