Finding the Fourth Proportional to 139,465.67, 192,462.89 and 75,803.31

Step by Step Solution

1. Step 1: Write the proportion equation
   139,465.67 : 192,462.89 = 75,803.31 : x
2. Step 2: Convert to fraction form
   139,465.67/192,462.89 = 75,803.31/x
3. Step 3: Cross multiply
   139,465.67x = 192,462.89 × 75,803.31
4. Step 4: Simplify right side
   139,465.67x = 14,589,323,735.15
5. Step 5: Solve for x
   x = 14,589,323,735.15/139,465.67
6. Step 6: Final answer
   x = 104,608.71