Finding the Fourth Proportional to 71,025.46, 106,551.18 and 55,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,025.46 : 106,551.18 = 55,136.50 : x
2. Step 2: Convert to fraction form
   71,025.46/106,551.18 = 55,136.50/x
3. Step 3: Cross multiply
   71,025.46x = 106,551.18 × 55,136.50
4. Step 4: Simplify right side
   71,025.46x = 5,874,859,136.07
5. Step 5: Solve for x
   x = 5,874,859,136.07/71,025.46
6. Step 6: Final answer
   x = 82,714.83