Finding the Fourth Proportional to 89,424.10, 123,320.67 and 58,743.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,424.10 : 123,320.67 = 58,743.03 : x
2. Step 2: Convert to fraction form
   89,424.10/123,320.67 = 58,743.03/x
3. Step 3: Cross multiply
   89,424.10x = 123,320.67 × 58,743.03
4. Step 4: Simplify right side
   89,424.10x = 7,244,229,817.43
5. Step 5: Solve for x
   x = 7,244,229,817.43/89,424.10
6. Step 6: Final answer
   x = 81,009.82