Finding the Fourth Proportional to 103,793.72, 143,180.76 and 65,539.46

Step by Step Solution

1. Step 1: Write the proportion equation
   103,793.72 : 143,180.76 = 65,539.46 : x
2. Step 2: Convert to fraction form
   103,793.72/143,180.76 = 65,539.46/x
3. Step 3: Cross multiply
   103,793.72x = 143,180.76 × 65,539.46
4. Step 4: Simplify right side
   103,793.72x = 9,383,989,692.79
5. Step 5: Solve for x
   x = 9,383,989,692.79/103,793.72
6. Step 6: Final answer
   x = 90,409.99