Finding the Fourth Proportional to 64,989.59, 89,685.86 and 35,181.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,989.59 : 89,685.86 = 35,181.59 : x
2. Step 2: Convert to fraction form
   64,989.59/89,685.86 = 35,181.59/x
3. Step 3: Cross multiply
   64,989.59x = 89,685.86 × 35,181.59
4. Step 4: Simplify right side
   64,989.59x = 3,155,290,530.98
5. Step 5: Solve for x
   x = 3,155,290,530.98/64,989.59
6. Step 6: Final answer
   x = 48,550.71