Finding the Fourth Proportional to 142,035.22, 213,081.99 and 42,186.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,035.22 : 213,081.99 = 42,186.52 : x
2. Step 2: Convert to fraction form
   142,035.22/213,081.99 = 42,186.52/x
3. Step 3: Cross multiply
   142,035.22x = 213,081.99 × 42,186.52
4. Step 4: Simplify right side
   142,035.22x = 8,989,186,356.43
5. Step 5: Solve for x
   x = 8,989,186,356.43/142,035.22
6. Step 6: Final answer
   x = 63,288.43