Finding the Fourth Proportional to 118,664, 163,756.32 and 65,672

Step by Step Solution

1. Step 1: Write the proportion equation
   118,664 : 163,756.32 = 65,672 : x
2. Step 2: Convert to fraction form
   118,664/163,756.32 = 65,672/x
3. Step 3: Cross multiply
   118,664x = 163,756.32 × 65,672
4. Step 4: Simplify right side
   118,664x = 10,754,205,047.04
5. Step 5: Solve for x
   x = 10,754,205,047.04/118,664
6. Step 6: Final answer
   x = 90,627.36