Finding the Fourth Proportional to 10,166.94, 15,251.67 and 3,591.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,166.94 : 15,251.67 = 3,591.81 : x
2. Step 2: Convert to fraction form
   10,166.94/15,251.67 = 3,591.81/x
3. Step 3: Cross multiply
   10,166.94x = 15,251.67 × 3,591.81
4. Step 4: Simplify right side
   10,166.94x = 54,781,100.82
5. Step 5: Solve for x
   x = 54,781,100.82/10,166.94
6. Step 6: Final answer
   x = 5,388.16