Finding the Fourth Proportional to 118,872.34, 164,047.86 and 65,157.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,872.34 : 164,047.86 = 65,157.38 : x
2. Step 2: Convert to fraction form
   118,872.34/164,047.86 = 65,157.38/x
3. Step 3: Cross multiply
   118,872.34x = 164,047.86 × 65,157.38
4. Step 4: Simplify right side
   118,872.34x = 10,688,928,752.21
5. Step 5: Solve for x
   x = 10,688,928,752.21/118,872.34
6. Step 6: Final answer
   x = 89,919.39