Finding the Fourth Proportional to 11,385.95, 17,080.96 and 3,488.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,385.95 : 17,080.96 = 3,488.31 : x
2. Step 2: Convert to fraction form
   11,385.95/17,080.96 = 3,488.31/x
3. Step 3: Cross multiply
   11,385.95x = 17,080.96 × 3,488.31
4. Step 4: Simplify right side
   11,385.95x = 59,583,683.58
5. Step 5: Solve for x
   x = 59,583,683.58/11,385.95
6. Step 6: Final answer
   x = 5,233.09