Finding the Fourth Proportional to 118,662.12, 163,749.69 and 64,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   118,662.12 : 163,749.69 = 64,945.98 : x
2. Step 2: Convert to fraction form
   118,662.12/163,749.69 = 64,945.98/x
3. Step 3: Cross multiply
   118,662.12x = 163,749.69 × 64,945.98
4. Step 4: Simplify right side
   118,662.12x = 10,634,884,091.75
5. Step 5: Solve for x
   x = 10,634,884,091.75/118,662.12
6. Step 6: Final answer
   x = 89,623.24