Finding the Fourth Proportional to 142,039.17, 213,042.15 and 118,496.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,039.17 : 213,042.15 = 118,496.52 : x
2. Step 2: Convert to fraction form
   142,039.17/213,042.15 = 118,496.52/x
3. Step 3: Cross multiply
   142,039.17x = 213,042.15 × 118,496.52
4. Step 4: Simplify right side
   142,039.17x = 25,244,753,388.32
5. Step 5: Solve for x
   x = 25,244,753,388.32/142,039.17
6. Step 6: Final answer
   x = 177,730.93