Finding the Fourth Proportional to 9,724.95, 14,589.72 and 3,151.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724.95 : 14,589.72 = 3,151.11 : x
2. Step 2: Convert to fraction form
   9,724.95/14,589.72 = 3,151.11/x
3. Step 3: Cross multiply
   9,724.95x = 14,589.72 × 3,151.11
4. Step 4: Simplify right side
   9,724.95x = 45,973,812.59
5. Step 5: Solve for x
   x = 45,973,812.59/9,724.95
6. Step 6: Final answer
   x = 4,727.41