Finding the Fourth Proportional to 11,602.50, 17,406.72 and 3,811.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,602.50 : 17,406.72 = 3,811.38 : x
2. Step 2: Convert to fraction form
   11,602.50/17,406.72 = 3,811.38/x
3. Step 3: Cross multiply
   11,602.50x = 17,406.72 × 3,811.38
4. Step 4: Simplify right side
   11,602.50x = 66,343,624.47
5. Step 5: Solve for x
   x = 66,343,624.47/11,602.50
6. Step 6: Final answer
   x = 5,718.05