Finding the Fourth Proportional to 152,105.34, 209,835.54 and 98,407.65

Step by Step Solution

1. Step 1: Write the proportion equation
   152,105.34 : 209,835.54 = 98,407.65 : x
2. Step 2: Convert to fraction form
   152,105.34/209,835.54 = 98,407.65/x
3. Step 3: Cross multiply
   152,105.34x = 209,835.54 × 98,407.65
4. Step 4: Simplify right side
   152,105.34x = 20,649,422,377.88
5. Step 5: Solve for x
   x = 20,649,422,377.88/152,105.34
6. Step 6: Final answer
   x = 135,757.38