Finding the Fourth Proportional to 152,078.99, 209,799.24 and 98,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   152,078.99 : 209,799.24 = 98,381.32 : x
2. Step 2: Convert to fraction form
   152,078.99/209,799.24 = 98,381.32/x
3. Step 3: Cross multiply
   152,078.99x = 209,799.24 × 98,381.32
4. Step 4: Simplify right side
   152,078.99x = 20,640,325,117.20
5. Step 5: Solve for x
   x = 20,640,325,117.20/152,078.99
6. Step 6: Final answer
   x = 135,721.09