Finding the Fourth Proportional to 11,665.69, 17,498.16 and 2,900.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.69 : 17,498.16 = 2,900.58 : x
2. Step 2: Convert to fraction form
   11,665.69/17,498.16 = 2,900.58/x
3. Step 3: Cross multiply
   11,665.69x = 17,498.16 × 2,900.58
4. Step 4: Simplify right side
   11,665.69x = 50,754,812.93
5. Step 5: Solve for x
   x = 50,754,812.93/11,665.69
6. Step 6: Final answer
   x = 4,350.78