Finding the Fourth Proportional to 152,852.82, 210,961.98 and 89,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   152,852.82 : 210,961.98 = 89,190.42 : x
2. Step 2: Convert to fraction form
   152,852.82/210,961.98 = 89,190.42/x
3. Step 3: Cross multiply
   152,852.82x = 210,961.98 × 89,190.42
4. Step 4: Simplify right side
   152,852.82x = 18,815,787,600.23
5. Step 5: Solve for x
   x = 18,815,787,600.23/152,852.82
6. Step 6: Final answer
   x = 123,097.42