Finding the Fourth Proportional to 8,748.53, 12,072.56 and 4,971.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.53 : 12,072.56 = 4,971.60 : x
2. Step 2: Convert to fraction form
   8,748.53/12,072.56 = 4,971.60/x
3. Step 3: Cross multiply
   8,748.53x = 12,072.56 × 4,971.60
4. Step 4: Simplify right side
   8,748.53x = 60,019,939.30
5. Step 5: Solve for x
   x = 60,019,939.30/8,748.53
6. Step 6: Final answer
   x = 6,860.57