Finding the Fourth Proportional to 7,310.10, 10,940.85 and 5,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,310.10 : 10,940.85 = 5,123.10 : x
2. Step 2: Convert to fraction form
   7,310.10/10,940.85 = 5,123.10/x
3. Step 3: Cross multiply
   7,310.10x = 10,940.85 × 5,123.10
4. Step 4: Simplify right side
   7,310.10x = 56,051,068.64
5. Step 5: Solve for x
   x = 56,051,068.64/7,310.10
6. Step 6: Final answer
   x = 7,667.62