Finding the Fourth Proportional to 7,312.12, 10,090.68 and 4,168.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,312.12 : 10,090.68 = 4,168.27 : x
2. Step 2: Convert to fraction form
   7,312.12/10,090.68 = 4,168.27/x
3. Step 3: Cross multiply
   7,312.12x = 10,090.68 × 4,168.27
4. Step 4: Simplify right side
   7,312.12x = 42,060,678.72
5. Step 5: Solve for x
   x = 42,060,678.72/7,312.12
6. Step 6: Final answer
   x = 5,752.19