Finding the Fourth Proportional to 150,384.78, 207,530.91 and 82,404.32

Step by Step Solution

1. Step 1: Write the proportion equation
   150,384.78 : 207,530.91 = 82,404.32 : x
2. Step 2: Convert to fraction form
   150,384.78/207,530.91 = 82,404.32/x
3. Step 3: Cross multiply
   150,384.78x = 207,530.91 × 82,404.32
4. Step 4: Simplify right side
   150,384.78x = 17,101,442,479.88
5. Step 5: Solve for x
   x = 17,101,442,479.88/150,384.78
6. Step 6: Final answer
   x = 113,717.91