Finding the Fourth Proportional to 118,911.24, 164,096.31 and 65,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   118,911.24 : 164,096.31 = 65,196.15 : x
2. Step 2: Convert to fraction form
   118,911.24/164,096.31 = 65,196.15/x
3. Step 3: Cross multiply
   118,911.24x = 164,096.31 × 65,196.15
4. Step 4: Simplify right side
   118,911.24x = 10,698,447,641.21
5. Step 5: Solve for x
   x = 10,698,447,641.21/118,911.24
6. Step 6: Final answer
   x = 89,970.03