Finding the Fourth Proportional to 139,493.60, 192,498.90 and 75,833

Step by Step Solution

1. Step 1: Write the proportion equation
   139,493.60 : 192,498.90 = 75,833 : x
2. Step 2: Convert to fraction form
   139,493.60/192,498.90 = 75,833/x
3. Step 3: Cross multiply
   139,493.60x = 192,498.90 × 75,833
4. Step 4: Simplify right side
   139,493.60x = 14,597,769,083.70
5. Step 5: Solve for x
   x = 14,597,769,083.70/139,493.60
6. Step 6: Final answer
   x = 104,648.31