Finding the Fourth Proportional to 139,782.40, 209,181.12 and 114,519.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,782.40 : 209,181.12 = 114,519.04 : x
2. Step 2: Convert to fraction form
   139,782.40/209,181.12 = 114,519.04/x
3. Step 3: Cross multiply
   139,782.40x = 209,181.12 × 114,519.04
4. Step 4: Simplify right side
   139,782.40x = 23,955,221,048.52
5. Step 5: Solve for x
   x = 23,955,221,048.52/139,782.40
6. Step 6: Final answer
   x = 171,375.09