Finding the Fourth Proportional to 17,740.50, 26,607.69 and 5,260.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,740.50 : 26,607.69 = 5,260.38 : x
2. Step 2: Convert to fraction form
   17,740.50/26,607.69 = 5,260.38/x
3. Step 3: Cross multiply
   17,740.50x = 26,607.69 × 5,260.38
4. Step 4: Simplify right side
   17,740.50x = 139,966,560.32
5. Step 5: Solve for x
   x = 139,966,560.32/17,740.50
6. Step 6: Final answer
   x = 7,889.66