Finding the Fourth Proportional to 139,119.14, 208,212.15 and 114,158.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,119.14 : 208,212.15 = 114,158.18 : x
2. Step 2: Convert to fraction form
   139,119.14/208,212.15 = 114,158.18/x
3. Step 3: Cross multiply
   139,119.14x = 208,212.15 × 114,158.18
4. Step 4: Simplify right side
   139,119.14x = 23,769,120,097.89
5. Step 5: Solve for x
   x = 23,769,120,097.89/139,119.14
6. Step 6: Final answer
   x = 170,854.42