Finding the Fourth Proportional to 7,288.13, 10,061.46 and 5,165.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,288.13 : 10,061.46 = 5,165.42 : x
2. Step 2: Convert to fraction form
   7,288.13/10,061.46 = 5,165.42/x
3. Step 3: Cross multiply
   7,288.13x = 10,061.46 × 5,165.42
4. Step 4: Simplify right side
   7,288.13x = 51,971,616.41
5. Step 5: Solve for x
   x = 51,971,616.41/7,288.13
6. Step 6: Final answer
   x = 7,130.99