Finding the Fourth Proportional to 11,750.72, 17,624.33 and 3,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,750.72 : 17,624.33 = 3,428.50 : x
2. Step 2: Convert to fraction form
   11,750.72/17,624.33 = 3,428.50/x
3. Step 3: Cross multiply
   11,750.72x = 17,624.33 × 3,428.50
4. Step 4: Simplify right side
   11,750.72x = 60,424,979.92
5. Step 5: Solve for x
   x = 60,424,979.92/11,750.72
6. Step 6: Final answer
   x = 5,142.24