Finding the Fourth Proportional to 65,471.83, 98,013.98 and 40,431.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,471.83 : 98,013.98 = 40,431.38 : x
2. Step 2: Convert to fraction form
   65,471.83/98,013.98 = 40,431.38/x
3. Step 3: Cross multiply
   65,471.83x = 98,013.98 × 40,431.38
4. Step 4: Simplify right side
   65,471.83x = 3,962,840,081.70
5. Step 5: Solve for x
   x = 3,962,840,081.70/65,471.83
6. Step 6: Final answer
   x = 60,527.41