Finding the Fourth Proportional to 7,142.61, 10,701.72 and 5,059.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142.61 : 10,701.72 = 5,059.16 : x
2. Step 2: Convert to fraction form
   7,142.61/10,701.72 = 5,059.16/x
3. Step 3: Cross multiply
   7,142.61x = 10,701.72 × 5,059.16
4. Step 4: Simplify right side
   7,142.61x = 54,141,660.25
5. Step 5: Solve for x
   x = 54,141,660.25/7,142.61
6. Step 6: Final answer
   x = 7,580.09