Finding the Fourth Proportional to 152,616.72, 210,624.39 and 88,953.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,616.72 : 210,624.39 = 88,953.15 : x
2. Step 2: Convert to fraction form
   152,616.72/210,624.39 = 88,953.15/x
3. Step 3: Cross multiply
   152,616.72x = 210,624.39 × 88,953.15
4. Step 4: Simplify right side
   152,616.72x = 18,735,702,957.33
5. Step 5: Solve for x
   x = 18,735,702,957.33/152,616.72
6. Step 6: Final answer
   x = 122,763.11