Finding the Fourth Proportional to 89,766.32, 123,880.20 and 51,532.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,766.32 : 123,880.20 = 51,532.88 : x
2. Step 2: Convert to fraction form
   89,766.32/123,880.20 = 51,532.88/x
3. Step 3: Cross multiply
   89,766.32x = 123,880.20 × 51,532.88
4. Step 4: Simplify right side
   89,766.32x = 6,383,903,480.98
5. Step 5: Solve for x
   x = 6,383,903,480.98/89,766.32
6. Step 6: Final answer
   x = 71,116.91