Finding the Fourth Proportional to 89,893.89, 134,797.75 and 42,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,893.89 : 134,797.75 = 42,469.50 : x
2. Step 2: Convert to fraction form
   89,893.89/134,797.75 = 42,469.50/x
3. Step 3: Cross multiply
   89,893.89x = 134,797.75 × 42,469.50
4. Step 4: Simplify right side
   89,893.89x = 5,724,793,043.63
5. Step 5: Solve for x
   x = 5,724,793,043.63/89,893.89
6. Step 6: Final answer
   x = 63,683.89