Finding the Fourth Proportional to 71,162.52, 106,651.16 and 28,993.20

Step by Step Solution

1. Step 1: Write the proportion equation
   71,162.52 : 106,651.16 = 28,993.20 : x
2. Step 2: Convert to fraction form
   71,162.52/106,651.16 = 28,993.20/x
3. Step 3: Cross multiply
   71,162.52x = 106,651.16 × 28,993.20
4. Step 4: Simplify right side
   71,162.52x = 3,092,158,267.15
5. Step 5: Solve for x
   x = 3,092,158,267.15/71,162.52
6. Step 6: Final answer
   x = 43,452.06