Finding the Fourth Proportional to 89,407.50, 123,377.94 and 53,590.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,407.50 : 123,377.94 = 53,590.56 : x
2. Step 2: Convert to fraction form
   89,407.50/123,377.94 = 53,590.56/x
3. Step 3: Cross multiply
   89,407.50x = 123,377.94 × 53,590.56
4. Step 4: Simplify right side
   89,407.50x = 6,611,892,896.25
5. Step 5: Solve for x
   x = 6,611,892,896.25/89,407.50
6. Step 6: Final answer
   x = 73,952.33