Finding the Fourth Proportional to 89,559.82, 123,588.03 and 53,742.70

Step by Step Solution

1. Step 1: Write the proportion equation
   89,559.82 : 123,588.03 = 53,742.70 : x
2. Step 2: Convert to fraction form
   89,559.82/123,588.03 = 53,742.70/x
3. Step 3: Cross multiply
   89,559.82x = 123,588.03 × 53,742.70
4. Step 4: Simplify right side
   89,559.82x = 6,641,954,419.88
5. Step 5: Solve for x
   x = 6,641,954,419.88/89,559.82
6. Step 6: Final answer
   x = 74,162.21