Finding the Fourth Proportional to 118,868.60, 164,038.02 and 65,155.88

Step by Step Solution

1. Step 1: Write the proportion equation
   118,868.60 : 164,038.02 = 65,155.88 : x
2. Step 2: Convert to fraction form
   118,868.60/164,038.02 = 65,155.88/x
3. Step 3: Cross multiply
   118,868.60x = 164,038.02 × 65,155.88
4. Step 4: Simplify right side
   118,868.60x = 10,688,041,546.56
5. Step 5: Solve for x
   x = 10,688,041,546.56/118,868.60
6. Step 6: Final answer
   x = 89,914.76