Finding the Fourth Proportional to 142,353.31, 213,527.26 and 42,513.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,353.31 : 213,527.26 = 42,513.79 : x
2. Step 2: Convert to fraction form
   142,353.31/213,527.26 = 42,513.79/x
3. Step 3: Cross multiply
   142,353.31x = 213,527.26 × 42,513.79
4. Step 4: Simplify right side
   142,353.31x = 9,077,853,090.92
5. Step 5: Solve for x
   x = 9,077,853,090.92/142,353.31
6. Step 6: Final answer
   x = 63,769.88