Finding the Fourth Proportional to 142,059.93, 213,034.50 and 53,265.05

Step by Step Solution

1. Step 1: Write the proportion equation
   142,059.93 : 213,034.50 = 53,265.05 : x
2. Step 2: Convert to fraction form
   142,059.93/213,034.50 = 53,265.05/x
3. Step 3: Cross multiply
   142,059.93x = 213,034.50 × 53,265.05
4. Step 4: Simplify right side
   142,059.93x = 11,347,293,027.90
5. Step 5: Solve for x
   x = 11,347,293,027.90/142,059.93
6. Step 6: Final answer
   x = 79,876.80