Finding the Fourth Proportional to 118,860.60, 164,026.62 and 65,144.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,860.60 : 164,026.62 = 65,144.52 : x
2. Step 2: Convert to fraction form
   118,860.60/164,026.62 = 65,144.52/x
3. Step 3: Cross multiply
   118,860.60x = 164,026.62 × 65,144.52
4. Step 4: Simplify right side
   118,860.60x = 10,685,435,427.12
5. Step 5: Solve for x
   x = 10,685,435,427.12/118,860.60
6. Step 6: Final answer
   x = 89,898.89