Finding the Fourth Proportional to 9,255.51, 12,772.82 and 5,276.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,255.51 : 12,772.82 = 5,276.99 : x
2. Step 2: Convert to fraction form
   9,255.51/12,772.82 = 5,276.99/x
3. Step 3: Cross multiply
   9,255.51x = 12,772.82 × 5,276.99
4. Step 4: Simplify right side
   9,255.51x = 67,402,088.54
5. Step 5: Solve for x
   x = 67,402,088.54/9,255.51
6. Step 6: Final answer
   x = 7,282.37