Finding the Fourth Proportional to 86,105.50, 118,796.22 and 53,818.09

Step by Step Solution

1. Step 1: Write the proportion equation
   86,105.50 : 118,796.22 = 53,818.09 : x
2. Step 2: Convert to fraction form
   86,105.50/118,796.22 = 53,818.09/x
3. Step 3: Cross multiply
   86,105.50x = 118,796.22 × 53,818.09
4. Step 4: Simplify right side
   86,105.50x = 6,393,385,362.63
5. Step 5: Solve for x
   x = 6,393,385,362.63/86,105.50
6. Step 6: Final answer
   x = 74,250.61