Finding the Fourth Proportional to 89,238.42, 123,128.37 and 53,414.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,238.42 : 123,128.37 = 53,414.82 : x
2. Step 2: Convert to fraction form
   89,238.42/123,128.37 = 53,414.82/x
3. Step 3: Cross multiply
   89,238.42x = 123,128.37 × 53,414.82
4. Step 4: Simplify right side
   89,238.42x = 6,576,879,720.44
5. Step 5: Solve for x
   x = 6,576,879,720.44/89,238.42
6. Step 6: Final answer
   x = 73,700.09