Finding the Fourth Proportional to 118,916.71, 164,103.81 and 65,201.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,916.71 : 164,103.81 = 65,201.59 : x
2. Step 2: Convert to fraction form
   118,916.71/164,103.81 = 65,201.59/x
3. Step 3: Cross multiply
   118,916.71x = 164,103.81 × 65,201.59
4. Step 4: Simplify right side
   118,916.71x = 10,699,829,297.68
5. Step 5: Solve for x
   x = 10,699,829,297.68/118,916.71
6. Step 6: Final answer
   x = 89,977.51