Finding the Fourth Proportional to 89,223.63, 123,128.82 and 51,497.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,223.63 : 123,128.82 = 51,497.88 : x
2. Step 2: Convert to fraction form
   89,223.63/123,128.82 = 51,497.88/x
3. Step 3: Cross multiply
   89,223.63x = 123,128.82 × 51,497.88
4. Step 4: Simplify right side
   89,223.63x = 6,340,873,196.90
5. Step 5: Solve for x
   x = 6,340,873,196.90/89,223.63
6. Step 6: Final answer
   x = 71,067.20