Finding the Fourth Proportional to 139,851.45, 192,919.14 and 83,251.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,851.45 : 192,919.14 = 83,251.89 : x
2. Step 2: Convert to fraction form
   139,851.45/192,919.14 = 83,251.89/x
3. Step 3: Cross multiply
   139,851.45x = 192,919.14 × 83,251.89
4. Step 4: Simplify right side
   139,851.45x = 16,060,883,022.17
5. Step 5: Solve for x
   x = 16,060,883,022.17/139,851.45
6. Step 6: Final answer
   x = 114,842.45