Finding the Fourth Proportional to 65,713.82, 90,653.46 and 43,043

Step by Step Solution

1. Step 1: Write the proportion equation
   65,713.82 : 90,653.46 = 43,043 : x
2. Step 2: Convert to fraction form
   65,713.82/90,653.46 = 43,043/x
3. Step 3: Cross multiply
   65,713.82x = 90,653.46 × 43,043
4. Step 4: Simplify right side
   65,713.82x = 3,901,996,878.78
5. Step 5: Solve for x
   x = 3,901,996,878.78/65,713.82
6. Step 6: Final answer
   x = 59,378.63