Finding the Fourth Proportional to 10,987.79, 16,483.37 and 3,590.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.79 : 16,483.37 = 3,590.46 : x
2. Step 2: Convert to fraction form
   10,987.79/16,483.37 = 3,590.46/x
3. Step 3: Cross multiply
   10,987.79x = 16,483.37 × 3,590.46
4. Step 4: Simplify right side
   10,987.79x = 59,182,862.70
5. Step 5: Solve for x
   x = 59,182,862.70/10,987.79
6. Step 6: Final answer
   x = 5,386.24