Finding the Fourth Proportional to 7,443.72, 11,161.53 and 4,810.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.72 : 11,161.53 = 4,810.86 : x
2. Step 2: Convert to fraction form
   7,443.72/11,161.53 = 4,810.86/x
3. Step 3: Cross multiply
   7,443.72x = 11,161.53 × 4,810.86
4. Step 4: Simplify right side
   7,443.72x = 53,696,558.22
5. Step 5: Solve for x
   x = 53,696,558.22/7,443.72
6. Step 6: Final answer
   x = 7,213.67