Finding the Fourth Proportional to 152,756.52, 210,834.18 and 89,104.36

Step by Step Solution

1. Step 1: Write the proportion equation
   152,756.52 : 210,834.18 = 89,104.36 : x
2. Step 2: Convert to fraction form
   152,756.52/210,834.18 = 89,104.36/x
3. Step 3: Cross multiply
   152,756.52x = 210,834.18 × 89,104.36
4. Step 4: Simplify right side
   152,756.52x = 18,786,244,675.02
5. Step 5: Solve for x
   x = 18,786,244,675.02/152,756.52
6. Step 6: Final answer
   x = 122,981.62