Finding the Fourth Proportional to 11,666.51, 17,495.71 and 3,873.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,666.51 : 17,495.71 = 3,873.50 : x
2. Step 2: Convert to fraction form
   11,666.51/17,495.71 = 3,873.50/x
3. Step 3: Cross multiply
   11,666.51x = 17,495.71 × 3,873.50
4. Step 4: Simplify right side
   11,666.51x = 67,769,632.69
5. Step 5: Solve for x
   x = 67,769,632.69/11,666.51
6. Step 6: Final answer
   x = 5,808.90