Finding the Fourth Proportional to 4,790.76, 7,200.72 and 4,688.76

Step by Step Solution

1. Step 1: Write the proportion equation
   4,790.76 : 7,200.72 = 4,688.76 : x
2. Step 2: Convert to fraction form
   4,790.76/7,200.72 = 4,688.76/x
3. Step 3: Cross multiply
   4,790.76x = 7,200.72 × 4,688.76
4. Step 4: Simplify right side
   4,790.76x = 33,762,447.91
5. Step 5: Solve for x
   x = 33,762,447.91/4,790.76
6. Step 6: Final answer
   x = 7,047.41