Finding the Fourth Proportional to 9,251.06, 12,766.47 and 5,059.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,251.06 : 12,766.47 = 5,059.31 : x
2. Step 2: Convert to fraction form
   9,251.06/12,766.47 = 5,059.31/x
3. Step 3: Cross multiply
   9,251.06x = 12,766.47 × 5,059.31
4. Step 4: Simplify right side
   9,251.06x = 64,589,529.34
5. Step 5: Solve for x
   x = 64,589,529.34/9,251.06
6. Step 6: Final answer
   x = 6,981.85