Finding the Fourth Proportional to 8,132.16, 11,219.04 and 5,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,132.16 : 11,219.04 = 5,142.72 : x
2. Step 2: Convert to fraction form
   8,132.16/11,219.04 = 5,142.72/x
3. Step 3: Cross multiply
   8,132.16x = 11,219.04 × 5,142.72
4. Step 4: Simplify right side
   8,132.16x = 57,696,381.39
5. Step 5: Solve for x
   x = 57,696,381.39/8,132.16
6. Step 6: Final answer
   x = 7,094.84