Finding the Fourth Proportional to 89,564.26, 134,142.15 and 42,850.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,564.26 : 134,142.15 = 42,850.18 : x
2. Step 2: Convert to fraction form
   89,564.26/134,142.15 = 42,850.18/x
3. Step 3: Cross multiply
   89,564.26x = 134,142.15 × 42,850.18
4. Step 4: Simplify right side
   89,564.26x = 5,748,015,273.09
5. Step 5: Solve for x
   x = 5,748,015,273.09/89,564.26
6. Step 6: Final answer
   x = 64,177.56