Finding the Fourth Proportional to 19,040.50, 26,275.89 and 10,657

Step by Step Solution

1. Step 1: Write the proportion equation
   19,040.50 : 26,275.89 = 10,657 : x
2. Step 2: Convert to fraction form
   19,040.50/26,275.89 = 10,657/x
3. Step 3: Cross multiply
   19,040.50x = 26,275.89 × 10,657
4. Step 4: Simplify right side
   19,040.50x = 280,022,159.73
5. Step 5: Solve for x
   x = 280,022,159.73/19,040.50
6. Step 6: Final answer
   x = 14,706.66