Finding the Fourth Proportional to 6,113.72, 8,436.93 and 3,319.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,113.72 : 8,436.93 = 3,319.22 : x
2. Step 2: Convert to fraction form
   6,113.72/8,436.93 = 3,319.22/x
3. Step 3: Cross multiply
   6,113.72x = 8,436.93 × 3,319.22
4. Step 4: Simplify right side
   6,113.72x = 28,004,047.89
5. Step 5: Solve for x
   x = 28,004,047.89/6,113.72
6. Step 6: Final answer
   x = 4,580.52