Finding the Fourth Proportional to 139,499.34, 192,501.73 and 75,836.85

Step by Step Solution

1. Step 1: Write the proportion equation
   139,499.34 : 192,501.73 = 75,836.85 : x
2. Step 2: Convert to fraction form
   139,499.34/192,501.73 = 75,836.85/x
3. Step 3: Cross multiply
   139,499.34x = 192,501.73 × 75,836.85
4. Step 4: Simplify right side
   139,499.34x = 14,598,724,822.75
5. Step 5: Solve for x
   x = 14,598,724,822.75/139,499.34
6. Step 6: Final answer
   x = 104,650.85