Finding the Fourth Proportional to 89,496.44, 123,381.54 and 71,408.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,496.44 : 123,381.54 = 71,408.59 : x
2. Step 2: Convert to fraction form
   89,496.44/123,381.54 = 71,408.59/x
3. Step 3: Cross multiply
   89,496.44x = 123,381.54 × 71,408.59
4. Step 4: Simplify right side
   89,496.44x = 8,810,501,595.39
5. Step 5: Solve for x
   x = 8,810,501,595.39/89,496.44
6. Step 6: Final answer
   x = 98,445.27