Finding the Fourth Proportional to 144,922.62, 217,432.56 and 56,179.02

Step by Step Solution

1. Step 1: Write the proportion equation
   144,922.62 : 217,432.56 = 56,179.02 : x
2. Step 2: Convert to fraction form
   144,922.62/217,432.56 = 56,179.02/x
3. Step 3: Cross multiply
   144,922.62x = 217,432.56 × 56,179.02
4. Step 4: Simplify right side
   144,922.62x = 12,215,148,136.89
5. Step 5: Solve for x
   x = 12,215,148,136.89/144,922.62
6. Step 6: Final answer
   x = 84,287.38