Finding the Fourth Proportional to 152,618.72, 210,609.88 and 84,634.60

Step by Step Solution

1. Step 1: Write the proportion equation
   152,618.72 : 210,609.88 = 84,634.60 : x
2. Step 2: Convert to fraction form
   152,618.72/210,609.88 = 84,634.60/x
3. Step 3: Cross multiply
   152,618.72x = 210,609.88 × 84,634.60
4. Step 4: Simplify right side
   152,618.72x = 17,824,882,949.85
5. Step 5: Solve for x
   x = 17,824,882,949.85/152,618.72
6. Step 6: Final answer
   x = 116,793.56