Finding the Fourth Proportional to 139,483.94, 192,487.98 and 75,821.74

Step by Step Solution

1. Step 1: Write the proportion equation
   139,483.94 : 192,487.98 = 75,821.74 : x
2. Step 2: Convert to fraction form
   139,483.94/192,487.98 = 75,821.74/x
3. Step 3: Cross multiply
   139,483.94x = 192,487.98 × 75,821.74
4. Step 4: Simplify right side
   139,483.94x = 14,594,773,572.69
5. Step 5: Solve for x
   x = 14,594,773,572.69/139,483.94
6. Step 6: Final answer
   x = 104,634.08