Finding the Fourth Proportional to 139,359.86, 192,315.75 and 75,697.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359.86 : 192,315.75 = 75,697.10 : x
2. Step 2: Convert to fraction form
   139,359.86/192,315.75 = 75,697.10/x
3. Step 3: Cross multiply
   139,359.86x = 192,315.75 × 75,697.10
4. Step 4: Simplify right side
   139,359.86x = 14,557,743,597.75
5. Step 5: Solve for x
   x = 14,557,743,597.75/139,359.86
6. Step 6: Final answer
   x = 104,461.53