Finding the Fourth Proportional to 142,697.52, 213,929.52 and 53,900.64

Step by Step Solution

1. Step 1: Write the proportion equation
   142,697.52 : 213,929.52 = 53,900.64 : x
2. Step 2: Convert to fraction form
   142,697.52/213,929.52 = 53,900.64/x
3. Step 3: Cross multiply
   142,697.52x = 213,929.52 × 53,900.64
4. Step 4: Simplify right side
   142,697.52x = 11,530,938,042.89
5. Step 5: Solve for x
   x = 11,530,938,042.89/142,697.52
6. Step 6: Final answer
   x = 80,806.86