Finding the Fourth Proportional to 89,729.16, 123,871.23 and 69,540.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,729.16 : 123,871.23 = 69,540.72 : x
2. Step 2: Convert to fraction form
   89,729.16/123,871.23 = 69,540.72/x
3. Step 3: Cross multiply
   89,729.16x = 123,871.23 × 69,540.72
4. Step 4: Simplify right side
   89,729.16x = 8,614,094,521.49
5. Step 5: Solve for x
   x = 8,614,094,521.49/89,729.16
6. Step 6: Final answer
   x = 96,001.06