Finding the Fourth Proportional to 64,851.72, 89,499.48 and 36,559.23

Step by Step Solution

1. Step 1: Write the proportion equation
   64,851.72 : 89,499.48 = 36,559.23 : x
2. Step 2: Convert to fraction form
   64,851.72/89,499.48 = 36,559.23/x
3. Step 3: Cross multiply
   64,851.72x = 89,499.48 × 36,559.23
4. Step 4: Simplify right side
   64,851.72x = 3,272,032,074.20
5. Step 5: Solve for x
   x = 3,272,032,074.20/64,851.72
6. Step 6: Final answer
   x = 50,454.05