Finding the Fourth Proportional to 17,658.63, 26,491.59 and 5,179.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,658.63 : 26,491.59 = 5,179.05 : x
2. Step 2: Convert to fraction form
   17,658.63/26,491.59 = 5,179.05/x
3. Step 3: Cross multiply
   17,658.63x = 26,491.59 × 5,179.05
4. Step 4: Simplify right side
   17,658.63x = 137,201,269.19
5. Step 5: Solve for x
   x = 137,201,269.19/17,658.63
6. Step 6: Final answer
   x = 7,769.64