Finding the Fourth Proportional to 152,669.82, 210,684.54 and 89,019.92

Step by Step Solution

1. Step 1: Write the proportion equation
   152,669.82 : 210,684.54 = 89,019.92 : x
2. Step 2: Convert to fraction form
   152,669.82/210,684.54 = 89,019.92/x
3. Step 3: Cross multiply
   152,669.82x = 210,684.54 × 89,019.92
4. Step 4: Simplify right side
   152,669.82x = 18,755,119,842.61
5. Step 5: Solve for x
   x = 18,755,119,842.61/152,669.82
6. Step 6: Final answer
   x = 122,847.59