Finding the Fourth Proportional to 4,687.10, 7,024.72 and 4,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   4,687.10 : 7,024.72 = 4,100.76 : x
2. Step 2: Convert to fraction form
   4,687.10/7,024.72 = 4,100.76/x
3. Step 3: Cross multiply
   4,687.10x = 7,024.72 × 4,100.76
4. Step 4: Simplify right side
   4,687.10x = 28,806,690.79
5. Step 5: Solve for x
   x = 28,806,690.79/4,687.10
6. Step 6: Final answer
   x = 6,145.95