Finding the Fourth Proportional to 10,826.75, 14,931.59 and 7,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.75 : 14,931.59 = 7,048.50 : x
2. Step 2: Convert to fraction form
   10,826.75/14,931.59 = 7,048.50/x
3. Step 3: Cross multiply
   10,826.75x = 14,931.59 × 7,048.50
4. Step 4: Simplify right side
   10,826.75x = 105,245,276.87
5. Step 5: Solve for x
   x = 105,245,276.87/10,826.75
6. Step 6: Final answer
   x = 9,720.86