Finding the Fourth Proportional to 118,835.59, 163,993.27 and 65,122.57

Step by Step Solution

1. Step 1: Write the proportion equation
   118,835.59 : 163,993.27 = 65,122.57 : x
2. Step 2: Convert to fraction form
   118,835.59/163,993.27 = 65,122.57/x
3. Step 3: Cross multiply
   118,835.59x = 163,993.27 × 65,122.57
4. Step 4: Simplify right side
   118,835.59x = 10,679,663,205.10
5. Step 5: Solve for x
   x = 10,679,663,205.10/118,835.59
6. Step 6: Final answer
   x = 89,869.23