Finding the Fourth Proportional to 11,762.72, 17,640.54 and 4,740.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,762.72 : 17,640.54 = 4,740.48 : x
2. Step 2: Convert to fraction form
   11,762.72/17,640.54 = 4,740.48/x
3. Step 3: Cross multiply
   11,762.72x = 17,640.54 × 4,740.48
4. Step 4: Simplify right side
   11,762.72x = 83,624,627.06
5. Step 5: Solve for x
   x = 83,624,627.06/11,762.72
6. Step 6: Final answer
   x = 7,109.29