Finding the Fourth Proportional to 139,751.37, 192,856.41 and 76,089.15

Step by Step Solution

1. Step 1: Write the proportion equation
   139,751.37 : 192,856.41 = 76,089.15 : x
2. Step 2: Convert to fraction form
   139,751.37/192,856.41 = 76,089.15/x
3. Step 3: Cross multiply
   139,751.37x = 192,856.41 × 76,089.15
4. Step 4: Simplify right side
   139,751.37x = 14,674,280,308.95
5. Step 5: Solve for x
   x = 14,674,280,308.95/139,751.37
6. Step 6: Final answer
   x = 105,002.77