Finding the Fourth Proportional to 152,766.27, 210,842.79 and 89,104.07

Step by Step Solution

1. Step 1: Write the proportion equation
   152,766.27 : 210,842.79 = 89,104.07 : x
2. Step 2: Convert to fraction form
   152,766.27/210,842.79 = 89,104.07/x
3. Step 3: Cross multiply
   152,766.27x = 210,842.79 × 89,104.07
4. Step 4: Simplify right side
   152,766.27x = 18,786,950,719.16
5. Step 5: Solve for x
   x = 18,786,950,719.16/152,766.27
6. Step 6: Final answer
   x = 122,978.40