Finding the Fourth Proportional to 118,890.48, 164,068.74 and 65,175.96

Step by Step Solution

1. Step 1: Write the proportion equation
   118,890.48 : 164,068.74 = 65,175.96 : x
2. Step 2: Convert to fraction form
   118,890.48/164,068.74 = 65,175.96/x
3. Step 3: Cross multiply
   118,890.48x = 164,068.74 × 65,175.96
4. Step 4: Simplify right side
   118,890.48x = 10,693,337,635.49
5. Step 5: Solve for x
   x = 10,693,337,635.49/118,890.48
6. Step 6: Final answer
   x = 89,942.76