Finding the Fourth Proportional to 139,389.03, 192,384.90 and 82,789.47

Step by Step Solution

1. Step 1: Write the proportion equation
   139,389.03 : 192,384.90 = 82,789.47 : x
2. Step 2: Convert to fraction form
   139,389.03/192,384.90 = 82,789.47/x
3. Step 3: Cross multiply
   139,389.03x = 192,384.90 × 82,789.47
4. Step 4: Simplify right side
   139,389.03x = 15,927,443,907.00
5. Step 5: Solve for x
   x = 15,927,443,907.00/139,389.03
6. Step 6: Final answer
   x = 114,266.12