Finding the Fourth Proportional to 142,054.38, 212,823.15 and 82,710.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,054.38 : 212,823.15 = 82,710.14 : x
2. Step 2: Convert to fraction form
   142,054.38/212,823.15 = 82,710.14/x
3. Step 3: Cross multiply
   142,054.38x = 212,823.15 × 82,710.14
4. Step 4: Simplify right side
   142,054.38x = 17,602,631,467.63
5. Step 5: Solve for x
   x = 17,602,631,467.63/142,054.38
6. Step 6: Final answer
   x = 123,914.74