Finding the Fourth Proportional to 139,411.83, 192,390.09 and 75,750.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,411.83 : 192,390.09 = 75,750.69 : x
2. Step 2: Convert to fraction form
   139,411.83/192,390.09 = 75,750.69/x
3. Step 3: Cross multiply
   139,411.83x = 192,390.09 × 75,750.69
4. Step 4: Simplify right side
   139,411.83x = 14,573,682,066.66
5. Step 5: Solve for x
   x = 14,573,682,066.66/139,411.83
6. Step 6: Final answer
   x = 104,536.91