Finding the Fourth Proportional to 11,762.68, 17,644.56 and 3,971.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,762.68 : 17,644.56 = 3,971.56 : x
2. Step 2: Convert to fraction form
   11,762.68/17,644.56 = 3,971.56/x
3. Step 3: Cross multiply
   11,762.68x = 17,644.56 × 3,971.56
4. Step 4: Simplify right side
   11,762.68x = 70,076,428.71
5. Step 5: Solve for x
   x = 70,076,428.71/11,762.68
6. Step 6: Final answer
   x = 5,957.52