Finding the Fourth Proportional to 64,893.96, 89,506.82 and 50,105.39

Step by Step Solution

1. Step 1: Write the proportion equation
   64,893.96 : 89,506.82 = 50,105.39 : x
2. Step 2: Convert to fraction form
   64,893.96/89,506.82 = 50,105.39/x
3. Step 3: Cross multiply
   64,893.96x = 89,506.82 × 50,105.39
4. Step 4: Simplify right side
   64,893.96x = 4,484,773,801.49
5. Step 5: Solve for x
   x = 4,484,773,801.49/64,893.96
6. Step 6: Final answer
   x = 69,109.26