Finding the Fourth Proportional to 89,304.48, 123,274.80 and 67,013.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,304.48 : 123,274.80 = 67,013.28 : x
2. Step 2: Convert to fraction form
   89,304.48/123,274.80 = 67,013.28/x
3. Step 3: Cross multiply
   89,304.48x = 123,274.80 × 67,013.28
4. Step 4: Simplify right side
   89,304.48x = 8,261,048,689.34
5. Step 5: Solve for x
   x = 8,261,048,689.34/89,304.48
6. Step 6: Final answer
   x = 92,504.30