Finding the Fourth Proportional to 142,327.55, 213,484.04 and 42,488.57

Step by Step Solution

1. Step 1: Write the proportion equation
   142,327.55 : 213,484.04 = 42,488.57 : x
2. Step 2: Convert to fraction form
   142,327.55/213,484.04 = 42,488.57/x
3. Step 3: Cross multiply
   142,327.55x = 213,484.04 × 42,488.57
4. Step 4: Simplify right side
   142,327.55x = 9,070,632,058.02
5. Step 5: Solve for x
   x = 9,070,632,058.02/142,327.55
6. Step 6: Final answer
   x = 63,730.68