Finding the Fourth Proportional to 5,100.18, 7,645.50 and 2,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.18 : 7,645.50 = 2,756.72 : x
2. Step 2: Convert to fraction form
   5,100.18/7,645.50 = 2,756.72/x
3. Step 3: Cross multiply
   5,100.18x = 7,645.50 × 2,756.72
4. Step 4: Simplify right side
   5,100.18x = 21,076,502.76
5. Step 5: Solve for x
   x = 21,076,502.76/5,100.18
6. Step 6: Final answer
   x = 4,132.50