Finding the Fourth Proportional to 156,735.72, 216,361.50 and 105,817.41

Step by Step Solution

1. Step 1: Write the proportion equation
   156,735.72 : 216,361.50 = 105,817.41 : x
2. Step 2: Convert to fraction form
   156,735.72/216,361.50 = 105,817.41/x
3. Step 3: Cross multiply
   156,735.72x = 216,361.50 × 105,817.41
4. Step 4: Simplify right side
   156,735.72x = 22,894,813,553.72
5. Step 5: Solve for x
   x = 22,894,813,553.72/156,735.72
6. Step 6: Final answer
   x = 146,072.72