Finding the Fourth Proportional to 11,384.95, 17,079.46 and 3,487.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,384.95 : 17,079.46 = 3,487.31 : x
2. Step 2: Convert to fraction form
   11,384.95/17,079.46 = 3,487.31/x
3. Step 3: Cross multiply
   11,384.95x = 17,079.46 × 3,487.31
4. Step 4: Simplify right side
   11,384.95x = 59,561,371.65
5. Step 5: Solve for x
   x = 59,561,371.65/11,384.95
6. Step 6: Final answer
   x = 5,231.59