Finding the Fourth Proportional to 142,081.58, 213,155.70 and 42,242.60

Step by Step Solution

1. Step 1: Write the proportion equation
   142,081.58 : 213,155.70 = 42,242.60 : x
2. Step 2: Convert to fraction form
   142,081.58/213,155.70 = 42,242.60/x
3. Step 3: Cross multiply
   142,081.58x = 213,155.70 × 42,242.60
4. Step 4: Simplify right side
   142,081.58x = 9,004,250,972.82
5. Step 5: Solve for x
   x = 9,004,250,972.82/142,081.58
6. Step 6: Final answer
   x = 63,373.81