Finding the Fourth Proportional to 9,426.28, 14,140.98 and 3,186.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.28 : 14,140.98 = 3,186.88 : x
2. Step 2: Convert to fraction form
   9,426.28/14,140.98 = 3,186.88/x
3. Step 3: Cross multiply
   9,426.28x = 14,140.98 × 3,186.88
4. Step 4: Simplify right side
   9,426.28x = 45,065,606.34
5. Step 5: Solve for x
   x = 45,065,606.34/9,426.28
6. Step 6: Final answer
   x = 4,780.85