Finding the Fourth Proportional to 11,412.37, 17,121.27 and 3,621.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,412.37 : 17,121.27 = 3,621.18 : x
2. Step 2: Convert to fraction form
   11,412.37/17,121.27 = 3,621.18/x
3. Step 3: Cross multiply
   11,412.37x = 17,121.27 × 3,621.18
4. Step 4: Simplify right side
   11,412.37x = 61,999,200.50
5. Step 5: Solve for x
   x = 61,999,200.50/11,412.37
6. Step 6: Final answer
   x = 5,432.63