Finding the Fourth Proportional to 86,116.41, 129,187.98 and 43,973.69

Step by Step Solution

1. Step 1: Write the proportion equation
   86,116.41 : 129,187.98 = 43,973.69 : x
2. Step 2: Convert to fraction form
   86,116.41/129,187.98 = 43,973.69/x
3. Step 3: Cross multiply
   86,116.41x = 129,187.98 × 43,973.69
4. Step 4: Simplify right side
   86,116.41x = 5,680,871,538.31
5. Step 5: Solve for x
   x = 5,680,871,538.31/86,116.41
6. Step 6: Final answer
   x = 65,967.35