Finding the Fourth Proportional to 278,111.46, 416,982.90 and 100,595.10

Step by Step Solution

1. Step 1: Write the proportion equation
   278,111.46 : 416,982.90 = 100,595.10 : x
2. Step 2: Convert to fraction form
   278,111.46/416,982.90 = 100,595.10/x
3. Step 3: Cross multiply
   278,111.46x = 416,982.90 × 100,595.10
4. Step 4: Simplify right side
   278,111.46x = 41,946,436,523.79
5. Step 5: Solve for x
   x = 41,946,436,523.79/278,111.46
6. Step 6: Final answer
   x = 150,825.99