Finding the Fourth Proportional to 3,123.18, 4,714.16 and 3,123.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.18 : 4,714.16 = 3,123.18 : x
2. Step 2: Convert to fraction form
   3,123.18/4,714.16 = 3,123.18/x
3. Step 3: Cross multiply
   3,123.18x = 4,714.16 × 3,123.18
4. Step 4: Simplify right side
   3,123.18x = 14,723,154.61
5. Step 5: Solve for x
   x = 14,723,154.61/3,123.18
6. Step 6: Final answer
   x = 4,714.16