Finding the Fourth Proportional to 7,620.89, 10,520.42 and 5,733.19

Step by Step Solution

1. Step 1: Write the proportion equation
   7,620.89 : 10,520.42 = 5,733.19 : x
2. Step 2: Convert to fraction form
   7,620.89/10,520.42 = 5,733.19/x
3. Step 3: Cross multiply
   7,620.89x = 10,520.42 × 5,733.19
4. Step 4: Simplify right side
   7,620.89x = 60,315,566.74
5. Step 5: Solve for x
   x = 60,315,566.74/7,620.89
6. Step 6: Final answer
   x = 7,914.51