Finding the Fourth Proportional to 9,259.93, 12,784.67 and 8,263.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,259.93 : 12,784.67 = 8,263.50 : x
2. Step 2: Convert to fraction form
   9,259.93/12,784.67 = 8,263.50/x
3. Step 3: Cross multiply
   9,259.93x = 12,784.67 × 8,263.50
4. Step 4: Simplify right side
   9,259.93x = 105,646,120.55
5. Step 5: Solve for x
   x = 105,646,120.55/9,259.93
6. Step 6: Final answer
   x = 11,408.95