Finding the Fourth Proportional to 118,789.40, 163,933.46 and 65,074.41

Step by Step Solution

1. Step 1: Write the proportion equation
   118,789.40 : 163,933.46 = 65,074.41 : x
2. Step 2: Convert to fraction form
   118,789.40/163,933.46 = 65,074.41/x
3. Step 3: Cross multiply
   118,789.40x = 163,933.46 × 65,074.41
4. Step 4: Simplify right side
   118,789.40x = 10,667,872,492.67
5. Step 5: Solve for x
   x = 10,667,872,492.67/118,789.40
6. Step 6: Final answer
   x = 89,804.92