Finding the Fourth Proportional to 7,312.64, 10,090.88 and 4,168.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,312.64 : 10,090.88 = 4,168.32 : x
2. Step 2: Convert to fraction form
   7,312.64/10,090.88 = 4,168.32/x
3. Step 3: Cross multiply
   7,312.64x = 10,090.88 × 4,168.32
4. Step 4: Simplify right side
   7,312.64x = 42,062,016.92
5. Step 5: Solve for x
   x = 42,062,016.92/7,312.64
6. Step 6: Final answer
   x = 5,751.96