Finding the Fourth Proportional to 7,975.77, 11,003.28 and 5,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,975.77 : 11,003.28 = 5,142.52 : x
2. Step 2: Convert to fraction form
   7,975.77/11,003.28 = 5,142.52/x
3. Step 3: Cross multiply
   7,975.77x = 11,003.28 × 5,142.52
4. Step 4: Simplify right side
   7,975.77x = 56,584,581.94
5. Step 5: Solve for x
   x = 56,584,581.94/7,975.77
6. Step 6: Final answer
   x = 7,094.56