Finding the Fourth Proportional to 17,608.50, 26,421.30 and 7,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,608.50 : 26,421.30 = 7,746.50 : x
2. Step 2: Convert to fraction form
   17,608.50/26,421.30 = 7,746.50/x
3. Step 3: Cross multiply
   17,608.50x = 26,421.30 × 7,746.50
4. Step 4: Simplify right side
   17,608.50x = 204,672,561.72
5. Step 5: Solve for x
   x = 204,672,561.72/17,608.50
6. Step 6: Final answer
   x = 11,623.51