Finding the Fourth Proportional to 210,096.72, 314,882.61 and 135,017.04

Step by Step Solution

1. Step 1: Write the proportion equation
   210,096.72 : 314,882.61 = 135,017.04 : x
2. Step 2: Convert to fraction form
   210,096.72/314,882.61 = 135,017.04/x
3. Step 3: Cross multiply
   210,096.72x = 314,882.61 × 135,017.04
4. Step 4: Simplify right side
   210,096.72x = 42,514,517,949.67
5. Step 5: Solve for x
   x = 42,514,517,949.67/210,096.72
6. Step 6: Final answer
   x = 202,356.89