Finding the Fourth Proportional to 139,846.46, 193,002.03 and 85,395.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,846.46 : 193,002.03 = 85,395.62 : x
2. Step 2: Convert to fraction form
   139,846.46/193,002.03 = 85,395.62/x
3. Step 3: Cross multiply
   139,846.46x = 193,002.03 × 85,395.62
4. Step 4: Simplify right side
   139,846.46x = 16,481,527,048.10
5. Step 5: Solve for x
   x = 16,481,527,048.10/139,846.46
6. Step 6: Final answer
   x = 117,854.45