Finding the Fourth Proportional to 139,855.86, 192,967.65 and 83,285.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,855.86 : 192,967.65 = 83,285.46 : x
2. Step 2: Convert to fraction form
   139,855.86/192,967.65 = 83,285.46/x
3. Step 3: Cross multiply
   139,855.86x = 192,967.65 × 83,285.46
4. Step 4: Simplify right side
   139,855.86x = 16,071,399,495.37
5. Step 5: Solve for x
   x = 16,071,399,495.37/139,855.86
6. Step 6: Final answer
   x = 114,914.02