Finding the Fourth Proportional to 11,538.50, 17,310.64 and 3,330.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,538.50 : 17,310.64 = 3,330.50 : x
2. Step 2: Convert to fraction form
   11,538.50/17,310.64 = 3,330.50/x
3. Step 3: Cross multiply
   11,538.50x = 17,310.64 × 3,330.50
4. Step 4: Simplify right side
   11,538.50x = 57,653,086.52
5. Step 5: Solve for x
   x = 57,653,086.52/11,538.50
6. Step 6: Final answer
   x = 4,996.58