Finding the Fourth Proportional to 11,720.52, 17,570.72 and 4,323.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,720.52 : 17,570.72 = 4,323.60 : x
2. Step 2: Convert to fraction form
   11,720.52/17,570.72 = 4,323.60/x
3. Step 3: Cross multiply
   11,720.52x = 17,570.72 × 4,323.60
4. Step 4: Simplify right side
   11,720.52x = 75,968,764.99
5. Step 5: Solve for x
   x = 75,968,764.99/11,720.52
6. Step 6: Final answer
   x = 6,481.69