Finding the Fourth Proportional to 11,665.81, 17,498.65 and 2,900.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.81 : 17,498.65 = 2,900.67 : x
2. Step 2: Convert to fraction form
   11,665.81/17,498.65 = 2,900.67/x
3. Step 3: Cross multiply
   11,665.81x = 17,498.65 × 2,900.67
4. Step 4: Simplify right side
   11,665.81x = 50,757,809.10
5. Step 5: Solve for x
   x = 50,757,809.10/11,665.81
6. Step 6: Final answer
   x = 4,350.99