Finding the Fourth Proportional to 89,959.82, 135,027.20 and 43,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,959.82 : 135,027.20 = 43,245.50 : x
2. Step 2: Convert to fraction form
   89,959.82/135,027.20 = 43,245.50/x
3. Step 3: Cross multiply
   89,959.82x = 135,027.20 × 43,245.50
4. Step 4: Simplify right side
   89,959.82x = 5,839,318,210.58
5. Step 5: Solve for x
   x = 5,839,318,210.58/89,959.82
6. Step 6: Final answer
   x = 64,910.30