Finding the Fourth Proportional to 9,620.50, 13,276.29 and 5,204.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,620.50 : 13,276.29 = 5,204.50 : x
2. Step 2: Convert to fraction form
   9,620.50/13,276.29 = 5,204.50/x
3. Step 3: Cross multiply
   9,620.50x = 13,276.29 × 5,204.50
4. Step 4: Simplify right side
   9,620.50x = 69,096,451.31
5. Step 5: Solve for x
   x = 69,096,451.31/9,620.50
6. Step 6: Final answer
   x = 7,182.21