Finding the Fourth Proportional to 17,403.50, 26,109.58 and 5,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,403.50 : 26,109.58 = 5,091.50 : x
2. Step 2: Convert to fraction form
   17,403.50/26,109.58 = 5,091.50/x
3. Step 3: Cross multiply
   17,403.50x = 26,109.58 × 5,091.50
4. Step 4: Simplify right side
   17,403.50x = 132,936,926.57
5. Step 5: Solve for x
   x = 132,936,926.57/17,403.50
6. Step 6: Final answer
   x = 7,638.52