Finding the Fourth Proportional to 150,245.34, 207,348.56 and 86,587.23

Step by Step Solution

1. Step 1: Write the proportion equation
   150,245.34 : 207,348.56 = 86,587.23 : x
2. Step 2: Convert to fraction form
   150,245.34/207,348.56 = 86,587.23/x
3. Step 3: Cross multiply
   150,245.34x = 207,348.56 × 86,587.23
4. Step 4: Simplify right side
   150,245.34x = 17,953,737,454.89
5. Step 5: Solve for x
   x = 17,953,737,454.89/150,245.34
6. Step 6: Final answer
   x = 119,496.14