Finding the Fourth Proportional to 65,743.96, 98,586.72 and 40,783

Step by Step Solution

1. Step 1: Write the proportion equation
   65,743.96 : 98,586.72 = 40,783 : x
2. Step 2: Convert to fraction form
   65,743.96/98,586.72 = 40,783/x
3. Step 3: Cross multiply
   65,743.96x = 98,586.72 × 40,783
4. Step 4: Simplify right side
   65,743.96x = 4,020,662,201.76
5. Step 5: Solve for x
   x = 4,020,662,201.76/65,743.96
6. Step 6: Final answer
   x = 61,156.37