Finding the Fourth Proportional to 200,521.27, 300,948.05 and 100,710.03

Step by Step Solution

1. Step 1: Write the proportion equation
   200,521.27 : 300,948.05 = 100,710.03 : x
2. Step 2: Convert to fraction form
   200,521.27/300,948.05 = 100,710.03/x
3. Step 3: Cross multiply
   200,521.27x = 300,948.05 × 100,710.03
4. Step 4: Simplify right side
   200,521.27x = 30,308,487,143.94
5. Step 5: Solve for x
   x = 30,308,487,143.94/200,521.27
6. Step 6: Final answer
   x = 151,148.49