Finding the Fourth Proportional to 89,385.92, 123,317.31 and 57,573.27

Step by Step Solution

1. Step 1: Write the proportion equation
   89,385.92 : 123,317.31 = 57,573.27 : x
2. Step 2: Convert to fraction form
   89,385.92/123,317.31 = 57,573.27/x
3. Step 3: Cross multiply
   89,385.92x = 123,317.31 × 57,573.27
4. Step 4: Simplify right side
   89,385.92x = 7,099,781,462.64
5. Step 5: Solve for x
   x = 7,099,781,462.64/89,385.92
6. Step 6: Final answer
   x = 79,428.41