Finding the Fourth Proportional to 282,919.89, 424,116.18 and 194,215.17

Step by Step Solution

1. Step 1: Write the proportion equation
   282,919.89 : 424,116.18 = 194,215.17 : x
2. Step 2: Convert to fraction form
   282,919.89/424,116.18 = 194,215.17/x
3. Step 3: Cross multiply
   282,919.89x = 424,116.18 × 194,215.17
4. Step 4: Simplify right side
   282,919.89x = 82,369,795,998.45
5. Step 5: Solve for x
   x = 82,369,795,998.45/282,919.89
6. Step 6: Final answer
   x = 291,141.76