Finding the Fourth Proportional to 89,328.76, 123,191.40 and 60,691.29

Step by Step Solution

1. Step 1: Write the proportion equation
   89,328.76 : 123,191.40 = 60,691.29 : x
2. Step 2: Convert to fraction form
   89,328.76/123,191.40 = 60,691.29/x
3. Step 3: Cross multiply
   89,328.76x = 123,191.40 × 60,691.29
4. Step 4: Simplify right side
   89,328.76x = 7,476,644,982.91
5. Step 5: Solve for x
   x = 7,476,644,982.91/89,328.76
6. Step 6: Final answer
   x = 83,698.07