Finding the Fourth Proportional to 142,530.01, 213,760.98 and 42,663.40

Step by Step Solution

1. Step 1: Write the proportion equation
   142,530.01 : 213,760.98 = 42,663.40 : x
2. Step 2: Convert to fraction form
   142,530.01/213,760.98 = 42,663.40/x
3. Step 3: Cross multiply
   142,530.01x = 213,760.98 × 42,663.40
4. Step 4: Simplify right side
   142,530.01x = 9,119,769,659.73
5. Step 5: Solve for x
   x = 9,119,769,659.73/142,530.01
6. Step 6: Final answer
   x = 63,984.91