Finding the Fourth Proportional to 150,978.24, 208,380.18 and 115,104.18

Step by Step Solution

1. Step 1: Write the proportion equation
   150,978.24 : 208,380.18 = 115,104.18 : x
2. Step 2: Convert to fraction form
   150,978.24/208,380.18 = 115,104.18/x
3. Step 3: Cross multiply
   150,978.24x = 208,380.18 × 115,104.18
4. Step 4: Simplify right side
   150,978.24x = 23,985,429,747.15
5. Step 5: Solve for x
   x = 23,985,429,747.15/150,978.24
6. Step 6: Final answer
   x = 158,866.80