Finding the Fourth Proportional to 109,768.89, 164,684.96 and 53,641.35

Step by Step Solution

1. Step 1: Write the proportion equation
   109,768.89 : 164,684.96 = 53,641.35 : x
2. Step 2: Convert to fraction form
   109,768.89/164,684.96 = 53,641.35/x
3. Step 3: Cross multiply
   109,768.89x = 164,684.96 × 53,641.35
4. Step 4: Simplify right side
   109,768.89x = 8,833,923,310.89
5. Step 5: Solve for x
   x = 8,833,923,310.89/109,768.89
6. Step 6: Final answer
   x = 80,477.48