Finding the Fourth Proportional to 95,152.16, 142,815.72 and 89,436.80

Step by Step Solution

1. Step 1: Write the proportion equation
   95,152.16 : 142,815.72 = 89,436.80 : x
2. Step 2: Convert to fraction form
   95,152.16/142,815.72 = 89,436.80/x
3. Step 3: Cross multiply
   95,152.16x = 142,815.72 × 89,436.80
4. Step 4: Simplify right side
   95,152.16x = 12,772,980,986.50
5. Step 5: Solve for x
   x = 12,772,980,986.50/95,152.16
6. Step 6: Final answer
   x = 134,237.43