Finding the Fourth Proportional to 152,098.34, 209,825.88 and 98,400.65

Step by Step Solution

1. Step 1: Write the proportion equation
   152,098.34 : 209,825.88 = 98,400.65 : x
2. Step 2: Convert to fraction form
   152,098.34/209,825.88 = 98,400.65/x
3. Step 3: Cross multiply
   152,098.34x = 209,825.88 × 98,400.65
4. Step 4: Simplify right side
   152,098.34x = 20,647,002,978.82
5. Step 5: Solve for x
   x = 20,647,002,978.82/152,098.34
6. Step 6: Final answer
   x = 135,747.72