Finding the Fourth Proportional to 118,914.60, 164,101.50 and 65,201.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,914.60 : 164,101.50 = 65,201.88 : x
2. Step 2: Convert to fraction form
   118,914.60/164,101.50 = 65,201.88/x
3. Step 3: Cross multiply
   118,914.60x = 164,101.50 × 65,201.88
4. Step 4: Simplify right side
   118,914.60x = 10,699,726,310.82
5. Step 5: Solve for x
   x = 10,699,726,310.82/118,914.60
6. Step 6: Final answer
   x = 89,978.24