Finding the Fourth Proportional to 118,710.43, 163,820.41 and 64,995.46

Step by Step Solution

1. Step 1: Write the proportion equation
   118,710.43 : 163,820.41 = 64,995.46 : x
2. Step 2: Convert to fraction form
   118,710.43/163,820.41 = 64,995.46/x
3. Step 3: Cross multiply
   118,710.43x = 163,820.41 × 64,995.46
4. Step 4: Simplify right side
   118,710.43x = 10,647,582,086.24
5. Step 5: Solve for x
   x = 10,647,582,086.24/118,710.43
6. Step 6: Final answer
   x = 89,693.74