Finding the Fourth Proportional to 118,930.50, 164,129.06 and 65,217.58

Step by Step Solution

1. Step 1: Write the proportion equation
   118,930.50 : 164,129.06 = 65,217.58 : x
2. Step 2: Convert to fraction form
   118,930.50/164,129.06 = 65,217.58/x
3. Step 3: Cross multiply
   118,930.50x = 164,129.06 × 65,217.58
4. Step 4: Simplify right side
   118,930.50x = 10,704,099,853.60
5. Step 5: Solve for x
   x = 10,704,099,853.60/118,930.50
6. Step 6: Final answer
   x = 90,002.98