Finding the Fourth Proportional to 3,587.50, 5,345.18 and 3,386.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,587.50 : 5,345.18 = 3,386.06 : x
2. Step 2: Convert to fraction form
   3,587.50/5,345.18 = 3,386.06/x
3. Step 3: Cross multiply
   3,587.50x = 5,345.18 × 3,386.06
4. Step 4: Simplify right side
   3,587.50x = 18,099,100.19
5. Step 5: Solve for x
   x = 18,099,100.19/3,587.50
6. Step 6: Final answer
   x = 5,045.05