Finding the Fourth Proportional to 86,181.52, 129,174.72 and 43,943.08

Step by Step Solution

1. Step 1: Write the proportion equation
   86,181.52 : 129,174.72 = 43,943.08 : x
2. Step 2: Convert to fraction form
   86,181.52/129,174.72 = 43,943.08/x
3. Step 3: Cross multiply
   86,181.52x = 129,174.72 × 43,943.08
4. Step 4: Simplify right side
   86,181.52x = 5,676,335,054.94
5. Step 5: Solve for x
   x = 5,676,335,054.94/86,181.52
6. Step 6: Final answer
   x = 65,864.88